Finding the Third Proportional to 402,403.50 and 837,864

Step by Step Solution

1. Step 1: Write the proportion equation
   402,403.50 : 837,864 = 837,864 : x
2. Step 2: Convert to fraction form
   402,403.50/837,864 = 837,864/x
3. Step 3: Cross multiply
   402,403.50x = 837,864 × 837,864
4. Step 4: Simplify right side
   402,403.50x = 702,016,082,496
5. Step 5: Solve for x
   x = 702,016,082,496/402,403.50
6. Step 6: Final answer
   x = 1,744,557.60