So there seem to be some who are a bit confused about how to get this achievement & I was no exception when I started trying to get this so both to give others a good start on this & to help clarify exactly how you get this cheevo I decided to make a solution for it :)
So first up,once you start the game & enter your destination (1st destination is France) you'll be asked number of cards you wish to use & of course the more cards the more likely it is that your power numbers will come up but more on that later...
Next you'll come to the focus of our attention which is the Power Card:http://imgur.com/4hm6hX1
Here you need to pay for each number you mark (& this will get more expensive for each destination) & you can only mark 3 for each game/round you play.
Any way mark 3 numbers (preferably 3 diagonally...explanation follows below)
Now when the game starts you need to get the numbers you have marked on the Power Card by simply having the number called & then having the number on your card(s)
YES,you need to have the number on your card & mark it when it's called to get the number marked on your Power Card:http://imgur.com/t3RnLmJ
As you see in the above picture there have been 2 Power Numbers called but since I only have #1 & not #69 only #1 will get marked on my Power Card:http://imgur.com/zucy5zJ
Hope that explains how to get the numbers marked on your Power Card & to get a Power Bingo you simply need to use these Power numbers to mark out a normal Bingo on your Power Card so back to what I said earlier start with diagonally (From corner to corner) numbers (which only takes 4 numbers) so that once you get a row you already have 2 of the 4 numbers needed for a Power Bingo in the corners & as long as you have tickets & time* you might as well keep trying,I usually go for at least 2 Power Bingos before calling a quit for the day (* = Power card resets 5hrs after you marked your 1st number)
Any questions or anything you feel I've missed please feel free to write both in the comments & in a PM.
Good Luck http://imgur.com/Yy8RFmU