Finding the Third Proportional to 15,121.69 and 23,978.53

Step by Step Solution

1. Step 1: Write the proportion equation
   15,121.69 : 23,978.53 = 23,978.53 : x
2. Step 2: Convert to fraction form
   15,121.69/23,978.53 = 23,978.53/x
3. Step 3: Cross multiply
   15,121.69x = 23,978.53 × 23,978.53
4. Step 4: Simplify right side
   15,121.69x = 574,969,960.91
5. Step 5: Solve for x
   x = 574,969,960.91/15,121.69
6. Step 6: Final answer
   x = 38,022.87