Finding the Third Proportional to 603,684 and 816,952.50

Step by Step Solution

1. Step 1: Write the proportion equation
   603,684 : 816,952.50 = 816,952.50 : x
2. Step 2: Convert to fraction form
   603,684/816,952.50 = 816,952.50/x
3. Step 3: Cross multiply
   603,684x = 816,952.50 × 816,952.50
4. Step 4: Simplify right side
   603,684x = 667,411,387,256.25
5. Step 5: Solve for x
   x = 667,411,387,256.25/603,684
6. Step 6: Final answer
   x = 1,105,564.15