Finding the Third Proportional to 9,915.75 and 14,875.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,915.75 : 14,875.31 = 14,875.31 : x
2. Step 2: Convert to fraction form
   9,915.75/14,875.31 = 14,875.31/x
3. Step 3: Cross multiply
   9,915.75x = 14,875.31 × 14,875.31
4. Step 4: Simplify right side
   9,915.75x = 221,274,921.97
5. Step 5: Solve for x
   x = 221,274,921.97/9,915.75
6. Step 6: Final answer
   x = 22,315.50