Finding the Third Proportional to 56,457,961.50 and 86,309,653.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,457,961.50 : 86,309,653.50 = 86,309,653.50 : x
2. Step 2: Convert to fraction form
   56,457,961.50/86,309,653.50 = 86,309,653.50/x
3. Step 3: Cross multiply
   56,457,961.50x = 86,309,653.50 × 86,309,653.50
4. Step 4: Simplify right side
   56,457,961.50x = 7,449,356,287,290,062
5. Step 5: Solve for x
   x = 7,449,356,287,290,062/56,457,961.50
6. Step 6: Final answer
   x = 131,945,186.99