Electromagnetic Waves

A plane electromagnetic wave travels in a medium of relative permeability 1.61 and relative permittivity 6.44. If magnitude of magnetic intensity is 4.5 $\times$ 10^$-$2 Am^$-$1 at a point, what will be the approximate magnitude of electric field intensity at that point? (Given : Permeability of free space $\mu$₀ = 4$\pi$ $\times$ 10^$-$7 NA^$-$2, speed of light in vacuum c = 3 $\times$ 10⁸ ms^$-$1)