Finding the Third Proportional to 4,387.78 and 10,358.16

Step by Step Solution

1. Step 1: Write the proportion equation
   4,387.78 : 10,358.16 = 10,358.16 : x
2. Step 2: Convert to fraction form
   4,387.78/10,358.16 = 10,358.16/x
3. Step 3: Cross multiply
   4,387.78x = 10,358.16 × 10,358.16
4. Step 4: Simplify right side
   4,387.78x = 107,291,400.90
5. Step 5: Solve for x
   x = 107,291,400.90/4,387.78
6. Step 6: Final answer
   x = 24,452.31