Finding the Third Proportional to 9,912.38 and 14,321.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,912.38 : 14,321.53 = 14,321.53 : x
2. Step 2: Convert to fraction form
   9,912.38/14,321.53 = 14,321.53/x
3. Step 3: Cross multiply
   9,912.38x = 14,321.53 × 14,321.53
4. Step 4: Simplify right side
   9,912.38x = 205,106,257.34
5. Step 5: Solve for x
   x = 205,106,257.34/9,912.38
6. Step 6: Final answer
   x = 20,691.94