Finding the Third Proportional to 4,458.38 and 9,601.88

Step by Step Solution

1. Step 1: Write the proportion equation
   4,458.38 : 9,601.88 = 9,601.88 : x
2. Step 2: Convert to fraction form
   4,458.38/9,601.88 = 9,601.88/x
3. Step 3: Cross multiply
   4,458.38x = 9,601.88 × 9,601.88
4. Step 4: Simplify right side
   4,458.38x = 92,196,003.52
5. Step 5: Solve for x
   x = 92,196,003.52/4,458.38
6. Step 6: Final answer
   x = 20,679.28