If the equilibrium constant for $\mathrm{A} \rightleftharpoons \mathrm{B}+\mathrm{Cis}_{\mathrm{eq}}^{(1)}$ and that of $\mathrm{B}+\mathrm{C} \rightleftharpoons \mathrm{P}$ is $\mathrm{K}_{\mathrm{eq}}^{(2)}$, the equilibrium constant for $\mathrm{A} \rightleftharpoons \mathrm{P}$ is