Finding the Third Proportional to 9,147.38 and 13,372.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,147.38 : 13,372.31 = 13,372.31 : x
2. Step 2: Convert to fraction form
   9,147.38/13,372.31 = 13,372.31/x
3. Step 3: Cross multiply
   9,147.38x = 13,372.31 × 13,372.31
4. Step 4: Simplify right side
   9,147.38x = 178,818,741.60
5. Step 5: Solve for x
   x = 178,818,741.60/9,147.38
6. Step 6: Final answer
   x = 19,548.64