Finding the Third Proportional to 119,929.50 and 243,976.50

Step by Step Solution

1. Step 1: Write the proportion equation
   119,929.50 : 243,976.50 = 243,976.50 : x
2. Step 2: Convert to fraction form
   119,929.50/243,976.50 = 243,976.50/x
3. Step 3: Cross multiply
   119,929.50x = 243,976.50 × 243,976.50
4. Step 4: Simplify right side
   119,929.50x = 59,524,532,552.25
5. Step 5: Solve for x
   x = 59,524,532,552.25/119,929.50
6. Step 6: Final answer
   x = 496,329.36