\(\frac{x}{3}=\frac{y}{5}=\frac{y-x}{5-3}=\frac{8}{2}=4\)
\(\frac{x}{3}=4\Rightarrow x=12\)
\(\frac{y}{5}=4\Rightarrow y=20.\)
\(\frac{x}{3}=\frac{y}{5}=\frac{y-x}{5-3}=\frac{88}{2}=44\)
\(\frac{x}{3}=44\Rightarrow x=132\)
\(\frac{y}{5}=44\Rightarrow y=220.\)