Finding the Third Proportional to 443,452.50 and 684,864

Step by Step Solution

1. Step 1: Write the proportion equation
   443,452.50 : 684,864 = 684,864 : x
2. Step 2: Convert to fraction form
   443,452.50/684,864 = 684,864/x
3. Step 3: Cross multiply
   443,452.50x = 684,864 × 684,864
4. Step 4: Simplify right side
   443,452.50x = 469,038,698,496
5. Step 5: Solve for x
   x = 469,038,698,496/443,452.50
6. Step 6: Final answer
   x = 1,057,697.72