Finding the Third Proportional to 402,484.50 and 838,039

Step by Step Solution

1. Step 1: Write the proportion equation
   402,484.50 : 838,039 = 838,039 : x
2. Step 2: Convert to fraction form
   402,484.50/838,039 = 838,039/x
3. Step 3: Cross multiply
   402,484.50x = 838,039 × 838,039
4. Step 4: Simplify right side
   402,484.50x = 702,309,365,521
5. Step 5: Solve for x
   x = 702,309,365,521/402,484.50
6. Step 6: Final answer
   x = 1,744,935.19