Finding the Third Proportional to 402,499.13 and 544,699.69

Step by Step Solution

1. Step 1: Write the proportion equation
   402,499.13 : 544,699.69 = 544,699.69 : x
2. Step 2: Convert to fraction form
   402,499.13/544,699.69 = 544,699.69/x
3. Step 3: Cross multiply
   402,499.13x = 544,699.69 × 544,699.69
4. Step 4: Simplify right side
   402,499.13x = 296,697,749,562.60
5. Step 5: Solve for x
   x = 296,697,749,562.60/402,499.13
6. Step 6: Final answer
   x = 737,138.87