Finding the Third Proportional to 11,080.50 and 15,780.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,080.50 : 15,780.38 = 15,780.38 : x
2. Step 2: Convert to fraction form
   11,080.50/15,780.38 = 15,780.38/x
3. Step 3: Cross multiply
   11,080.50x = 15,780.38 × 15,780.38
4. Step 4: Simplify right side
   11,080.50x = 249,020,235.14
5. Step 5: Solve for x
   x = 249,020,235.14/11,080.50
6. Step 6: Final answer
   x = 22,473.74