Finding the Third Proportional to 58,794,892.50 and 91,406,409

Step by Step Solution

1. Step 1: Write the proportion equation
   58,794,892.50 : 91,406,409 = 91,406,409 : x
2. Step 2: Convert to fraction form
   58,794,892.50/91,406,409 = 91,406,409/x
3. Step 3: Cross multiply
   58,794,892.50x = 91,406,409 × 91,406,409
4. Step 4: Simplify right side
   58,794,892.50x = 8,355,131,606,275,281
5. Step 5: Solve for x
   x = 8,355,131,606,275,281/58,794,892.50
6. Step 6: Final answer
   x = 142,106,418.62