Finding the Third Proportional to 402,489.50 and 838,049

Step by Step Solution

1. Step 1: Write the proportion equation
   402,489.50 : 838,049 = 838,049 : x
2. Step 2: Convert to fraction form
   402,489.50/838,049 = 838,049/x
3. Step 3: Cross multiply
   402,489.50x = 838,049 × 838,049
4. Step 4: Simplify right side
   402,489.50x = 702,326,126,401
5. Step 5: Solve for x
   x = 702,326,126,401/402,489.50
6. Step 6: Final answer
   x = 1,744,955.15