The equilibrium constants for the reactions

$\begin{array}{l}{\mathrm{Zn}}_{\left(\mathrm{s}\right)}+{\mathrm{Cu}}^{2+}{}_{\left(\mathrm{aq}\right)}\iff {\mathrm{Zn}}^{2+}{}_{\left(\mathrm{aq}\right)}+{\mathrm{Cu}}_{\left(\mathrm{s}\right)}\\ {\mathrm{Cu}}_{\left(\mathrm{s}\right)}+2{\mathrm{Ag}}_{\left(\mathrm{aq}\right)}^{+}\iff {\mathrm{Cu}}_{\left(\mathrm{aq}\right)}^{2+}+2{\mathrm{Ag}}_{\left(\mathrm{s}\right)}\end{array}$

are $K_1$ and $K_2$ respectively then the equilibrium constant for the reaction

${\mathrm{Zn}}_{\left(\mathrm{s}\right)}+2{\mathrm{Ag}}_{\left(\mathrm{aq}\right)}^{+}\rightleftharpoons {\mathrm{Zn}}_{\left(\mathrm{aq}\right)}^{+2}+2{\mathrm{Ag}}_{\left(\mathrm{s}\right)}$ will be.