Finding the Third Proportional to 243,400.50 and 363,069

Step by Step Solution

1. Step 1: Write the proportion equation
   243,400.50 : 363,069 = 363,069 : x
2. Step 2: Convert to fraction form
   243,400.50/363,069 = 363,069/x
3. Step 3: Cross multiply
   243,400.50x = 363,069 × 363,069
4. Step 4: Simplify right side
   243,400.50x = 131,819,098,761
5. Step 5: Solve for x
   x = 131,819,098,761/243,400.50
6. Step 6: Final answer
   x = 541,572.83