That's plain wrong, they have not announced that price target anywhere. There is speculation that it could be there target internally for the long term, but there is basically zero chance they'll start at that price and no guarantees they'll ever reach it.
You're right, I can't find any primary sources for this number. Yahoo[1] reports this number and attributes it to Bloomberg NEF but I can't find an actual article from Bloomberg with this number, or any actual target number in it.
