I think that she wanted you to take the one yard and cut it down the middle(folded edge) the sew hese two pieces togeather end to end so you will have a piece 22"x72". Sew this to the two yard piece leangth wise. You will still be short on the leangth, because your quilt is 72" and yourmaterial will be only 72". You will need to add at least 4 to 6 inches at the bottom of your leangth. Hope this helps. I always try to buy at leasst 1/2 yrd extra of material, never know when you will need more. Besides that is how we build are staches.