Finding the Third Proportional to 243,083.50 and 384,605

Step by Step Solution

1. Step 1: Write the proportion equation
   243,083.50 : 384,605 = 384,605 : x
2. Step 2: Convert to fraction form
   243,083.50/384,605 = 384,605/x
3. Step 3: Cross multiply
   243,083.50x = 384,605 × 384,605
4. Step 4: Simplify right side
   243,083.50x = 147,921,006,025
5. Step 5: Solve for x
   x = 147,921,006,025/243,083.50
6. Step 6: Final answer
   x = 608,519.32