Excel Function : GEOMEAN
Returns the geometric mean
Microsoft Excel Reference Page
Syntax and Description of the GEOMEAN Excel Function
The syntax for the GEOMEAN function in Microsoft Excel is: GEOMEAN(number1, [number2], ...) The GEOMEAN function returns the geometric mean of the given numbers. Number1 is the first number or cell reference, number2 is the second number or cell reference, and so on.
About GEOMEAN Excel Function
The GEOMEAN function returns the geometric mean, the most common type of average. It is the nth root of the product of n numbers.