Finding the Third Proportional to 4,392.38 and 9,456.38

Step by Step Solution

1. Step 1: Write the proportion equation
   4,392.38 : 9,456.38 = 9,456.38 : x
2. Step 2: Convert to fraction form
   4,392.38/9,456.38 = 9,456.38/x
3. Step 3: Cross multiply
   4,392.38x = 9,456.38 × 9,456.38
4. Step 4: Simplify right side
   4,392.38x = 89,423,028.14
5. Step 5: Solve for x
   x = 89,423,028.14/4,392.38
6. Step 6: Final answer
   x = 20,358.70