convert cm(Centimorgan) to bp(Base Pair) by shell

Question

[hosin]

I have a .txt file like:

> Chromosome    Position_cm Range_cm
>     1                 87.3                    81.03-81.23
>     2                 305                 248.8-323.2
>     3                 204.7           209.12-209.32
>     4                 137                 130.56-130.76
>     25                    148.4           141.9-154.8
>     26                  141.9         73.5-164.2

How I can convert cm(Centimorgan) to bp(Base Pair) by shell? Thanks

[cpad0112]

multiply by million and refer to https://en.wikipedia.org/wiki/Centimorgan