Finding the Third Proportional to 115,486 and 240,150

Step by Step Solution

1. Step 1: Write the proportion equation
   115,486 : 240,150 = 240,150 : x
2. Step 2: Convert to fraction form
   115,486/240,150 = 240,150/x
3. Step 3: Cross multiply
   115,486x = 240,150 × 240,150
4. Step 4: Simplify right side
   115,486x = 57,672,022,500
5. Step 5: Solve for x
   x = 57,672,022,500/115,486
6. Step 6: Final answer
   x = 499,385.40