Finding the Third Proportional to 14,257.27 and 20,915.09

Step by Step Solution

1. Step 1: Write the proportion equation
   14,257.27 : 20,915.09 = 20,915.09 : x
2. Step 2: Convert to fraction form
   14,257.27/20,915.09 = 20,915.09/x
3. Step 3: Cross multiply
   14,257.27x = 20,915.09 × 20,915.09
4. Step 4: Simplify right side
   14,257.27x = 437,440,819.77
5. Step 5: Solve for x
   x = 437,440,819.77/14,257.27
6. Step 6: Final answer
   x = 30,681.96