Finding the Third Proportional to 309,597 and 632,314.50

Step by Step Solution

1. Step 1: Write the proportion equation
   309,597 : 632,314.50 = 632,314.50 : x
2. Step 2: Convert to fraction form
   309,597/632,314.50 = 632,314.50/x
3. Step 3: Cross multiply
   309,597x = 632,314.50 × 632,314.50
4. Step 4: Simplify right side
   309,597x = 399,821,626,910.25
5. Step 5: Solve for x
   x = 399,821,626,910.25/309,597
6. Step 6: Final answer
   x = 1,291,426.04