Finding the Third Proportional to 402,493.50 and 838,059

Step by Step Solution

1. Step 1: Write the proportion equation
   402,493.50 : 838,059 = 838,059 : x
2. Step 2: Convert to fraction form
   402,493.50/838,059 = 838,059/x
3. Step 3: Cross multiply
   402,493.50x = 838,059 × 838,059
4. Step 4: Simplify right side
   402,493.50x = 702,342,887,481
5. Step 5: Solve for x
   x = 702,342,887,481/402,493.50
6. Step 6: Final answer
   x = 1,744,979.45