Finding the Third Proportional to 10,897.03 and 15,331.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,897.03 : 15,331.78 = 15,331.78 : x
2. Step 2: Convert to fraction form
   10,897.03/15,331.78 = 15,331.78/x
3. Step 3: Cross multiply
   10,897.03x = 15,331.78 × 15,331.78
4. Step 4: Simplify right side
   10,897.03x = 235,063,516.30
5. Step 5: Solve for x
   x = 235,063,516.30/10,897.03
6. Step 6: Final answer
   x = 21,571.34