Finding the Third Proportional to 73,915,081.88 and 171,108,642.38

Step by Step Solution

1. Step 1: Write the proportion equation
   73,915,081.88 : 171,108,642.38 = 171,108,642.38 : x
2. Step 2: Convert to fraction form
   73,915,081.88/171,108,642.38 = 171,108,642.38/x
3. Step 3: Cross multiply
   73,915,081.88x = 171,108,642.38 × 171,108,642.38
4. Step 4: Simplify right side
   73,915,081.88x = 29,278,167,495,415,644
5. Step 5: Solve for x
   x = 29,278,167,495,415,644/73,915,081.88
6. Step 6: Final answer
   x = 396,105,459.84