Finding the Third Proportional to 115,280 and 247,782.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,280 : 247,782.50 = 247,782.50 : x
2. Step 2: Convert to fraction form
   115,280/247,782.50 = 247,782.50/x
3. Step 3: Cross multiply
   115,280x = 247,782.50 × 247,782.50
4. Step 4: Simplify right side
   115,280x = 61,396,167,306.25
5. Step 5: Solve for x
   x = 61,396,167,306.25/115,280
6. Step 6: Final answer
   x = 532,582.99