Any moms with a newer Yukon/Yukon XL? Need resaaurance...

[bryantpark]

We are buying the Yukon XL with captain's sets (2nd row, for younger two kids) and I know the third row does not have LATCH.  My older DD is in a highback booster but moving to a backless and will be sitting in the third row along with an extra booster for carpools.  Can someone assure me that this will work? I am reading the safety manual and it is making my head spin.  We can see that they have additional seat belts connected to the roof but the childless guy selling it to me isn't really giving me the greatest confidence - next step is to actually try it out but thought someone here would have the answer quickly.  TIA!

[bryantpark]

WHOOPS WRONG BOARD!!!
SORRY!!!