Correct. Because the angles are congruent, the triangles are similar. Let n represent PO. Then: $\displaystyle\frac{{n}}{{36}}=\frac{{36}}{{24}}=\frac{{3}}{{2}}\usepackage{cmbright}\Huge\$

Multiply by 36: $\displaystyle{n}=\frac{{108}}{{2}}={54}\usepackage{cmbright}\Huge\$