Finding the Third Proportional to 4,389.75 and 9,498.38

Step by Step Solution

1. Step 1: Write the proportion equation
   4,389.75 : 9,498.38 = 9,498.38 : x
2. Step 2: Convert to fraction form
   4,389.75/9,498.38 = 9,498.38/x
3. Step 3: Cross multiply
   4,389.75x = 9,498.38 × 9,498.38
4. Step 4: Simplify right side
   4,389.75x = 90,219,127.64
5. Step 5: Solve for x
   x = 90,219,127.64/4,389.75
6. Step 6: Final answer
   x = 20,552.22