Finding the Third Proportional to 15,400.13 and 25,720.03

Step by Step Solution

1. Step 1: Write the proportion equation
   15,400.13 : 25,720.03 = 25,720.03 : x
2. Step 2: Convert to fraction form
   15,400.13/25,720.03 = 25,720.03/x
3. Step 3: Cross multiply
   15,400.13x = 25,720.03 × 25,720.03
4. Step 4: Simplify right side
   15,400.13x = 661,520,007.50
5. Step 5: Solve for x
   x = 661,520,007.50/15,400.13
6. Step 6: Final answer
   x = 42,955.50