Second Bimedial is Irrational/Mistake

Source Work
The mistake can be seen in the edition as published by Dover: ISBN 0-486-60089-0.

Mistake

 * For let a rational straight line $DE$ be set out, and let the parallelogram $DF$ equal to the square on $AC$ be applied to $DE$, producing $DG$ as breadth. [I.44]

The reference is incorrect.

is not the result needed here.

The correct reference should be: