A proton with velocity vec$(v)={10}^6$hat$(i)+{2\mathrm{.}10}^6$hat$(j)-{2\mathrm{.}10}^6$hat$(k)$ in a magnetic field which is given by vec$(B)=0\mathrm{.}2$hat$(i)-0\mathrm{.}3j+0\mathrm{.}4$hat$(k).$ Find the force on proton using vec$(F)=$qvec$(v)$vec$(B)$ expression.