Finding the Third Proportional to 11,160.28 and 15,156.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,160.28 : 15,156.98 = 15,156.98 : x
2. Step 2: Convert to fraction form
   11,160.28/15,156.98 = 15,156.98/x
3. Step 3: Cross multiply
   11,160.28x = 15,156.98 × 15,156.98
4. Step 4: Simplify right side
   11,160.28x = 229,734,175.34
5. Step 5: Solve for x
   x = 229,734,175.34/11,160.28
6. Step 6: Final answer
   x = 20,584.98