Problem $2(10$ points$)$:

The A$-36$ steel W$200$ X $59$ column of $4\mathrm{.}8-m$ length is pin connected at its ends and is subjected to eccentric load P$.$ Determine the maximum allowable value of P using the interaction method if the allowable bending stress is $({}_b{)}_{\text{a}\text{l}\text{l}\text{o}\text{w}}=150$ MPa $.$