Finding the Third Proportional to 4,483.13 and 9,478.69

Step by Step Solution

1. Step 1: Write the proportion equation
   4,483.13 : 9,478.69 = 9,478.69 : x
2. Step 2: Convert to fraction form
   4,483.13/9,478.69 = 9,478.69/x
3. Step 3: Cross multiply
   4,483.13x = 9,478.69 × 9,478.69
4. Step 4: Simplify right side
   4,483.13x = 89,845,516.72
5. Step 5: Solve for x
   x = 89,845,516.72/4,483.13
6. Step 6: Final answer
   x = 20,040.82