Finding the Third Proportional to 14,240 and 31,160.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,240 : 31,160.50 = 31,160.50 : x
2. Step 2: Convert to fraction form
   14,240/31,160.50 = 31,160.50/x
3. Step 3: Cross multiply
   14,240x = 31,160.50 × 31,160.50
4. Step 4: Simplify right side
   14,240x = 970,976,760.25
5. Step 5: Solve for x
   x = 970,976,760.25/14,240
6. Step 6: Final answer
   x = 68,186.57