Finding the Third Proportional to 10,157.50 and 15,418.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,157.50 : 15,418.50 = 15,418.50 : x
2. Step 2: Convert to fraction form
   10,157.50/15,418.50 = 15,418.50/x
3. Step 3: Cross multiply
   10,157.50x = 15,418.50 × 15,418.50
4. Step 4: Simplify right side
   10,157.50x = 237,730,142.25
5. Step 5: Solve for x
   x = 237,730,142.25/10,157.50
6. Step 6: Final answer
   x = 23,404.40