Any cell  in any worksheet can be referred to by being explicit thus:

Thisworkbook.Sheets("Sheet2").Range("C3")=ThisWork
book.Sheets("Sheet1").range("V45")

(those last two lines should be on one line)
or

ThisWorkbook.Sheets("Sheet1").range("V45").copy
Thisworkbook.Sheets("Sheet2").Range("C3")

(those last two lines should also be on one line)

But if I want to store this
value in a variable then how could I do this.
Please let em know.

to pass the info into a
varialble and then paste the variable, you would use:

Dim strString as String

strString = ThisWorkbook.Sheets("Sheet1").range("V45")
Thisworkbook.Sheets("Sheet2").Range("C3") = strString

You just need to put the variable name in front of the = sign instead of the
destination cell. ie

variablename = ThisWorkbook.Sheets("Sheet1").range("V45")

I notice if you just add ".Value" after each statement it also work.

Thisworkbook.Sheets("Sheet2").Range("C3").Value =
ThisWorkbook.Sheets("Sheet1").Range("V45").Value

Would there be something drastic wrong with this?

No, that's fine. What's going on is that .Value is the default property
of the .Range object, so it is assumed to be the relevant property if
you omit it.