Finding the Third Proportional to 603,666 and 816,925.50

Step by Step Solution

1. Step 1: Write the proportion equation
   603,666 : 816,925.50 = 816,925.50 : x
2. Step 2: Convert to fraction form
   603,666/816,925.50 = 816,925.50/x
3. Step 3: Cross multiply
   603,666x = 816,925.50 × 816,925.50
4. Step 4: Simplify right side
   603,666x = 667,367,272,550.25
5. Step 5: Solve for x
   x = 667,367,272,550.25/603,666
6. Step 6: Final answer
   x = 1,105,524.04