Finding the Third Proportional to 402,491.50 and 838,055

Step by Step Solution

1. Step 1: Write the proportion equation
   402,491.50 : 838,055 = 838,055 : x
2. Step 2: Convert to fraction form
   402,491.50/838,055 = 838,055/x
3. Step 3: Cross multiply
   402,491.50x = 838,055 × 838,055
4. Step 4: Simplify right side
   402,491.50x = 702,336,183,025
5. Step 5: Solve for x
   x = 702,336,183,025/402,491.50
6. Step 6: Final answer
   x = 1,744,971.47