Finding the Third Proportional to 31,666.50 and 68,355

Step by Step Solution

1. Step 1: Write the proportion equation
   31,666.50 : 68,355 = 68,355 : x
2. Step 2: Convert to fraction form
   31,666.50/68,355 = 68,355/x
3. Step 3: Cross multiply
   31,666.50x = 68,355 × 68,355
4. Step 4: Simplify right side
   31,666.50x = 4,672,406,025
5. Step 5: Solve for x
   x = 4,672,406,025/31,666.50
6. Step 6: Final answer
   x = 147,550.44