Finding the Third Proportional to 127,669.50 and 280,665

Step by Step Solution

1. Step 1: Write the proportion equation
   127,669.50 : 280,665 = 280,665 : x
2. Step 2: Convert to fraction form
   127,669.50/280,665 = 280,665/x
3. Step 3: Cross multiply
   127,669.50x = 280,665 × 280,665
4. Step 4: Simplify right side
   127,669.50x = 78,772,842,225
5. Step 5: Solve for x
   x = 78,772,842,225/127,669.50
6. Step 6: Final answer
   x = 617,005.96