Finding the Third Proportional to 9,118.13 and 20,017.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,118.13 : 20,017.69 = 20,017.69 : x
2. Step 2: Convert to fraction form
   9,118.13/20,017.69 = 20,017.69/x
3. Step 3: Cross multiply
   9,118.13x = 20,017.69 × 20,017.69
4. Step 4: Simplify right side
   9,118.13x = 400,707,812.85
5. Step 5: Solve for x
   x = 400,707,812.85/9,118.13
6. Step 6: Final answer
   x = 43,946.30