Finding the Third Proportional to 133,089 and 284,857.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,089 : 284,857.50 = 284,857.50 : x
2. Step 2: Convert to fraction form
   133,089/284,857.50 = 284,857.50/x
3. Step 3: Cross multiply
   133,089x = 284,857.50 × 284,857.50
4. Step 4: Simplify right side
   133,089x = 81,143,795,306.25
5. Step 5: Solve for x
   x = 81,143,795,306.25/133,089
6. Step 6: Final answer
   x = 609,695.73