Finding the Third Proportional to 18,397.13 and 38,368.69

Step by Step Solution

1. Step 1: Write the proportion equation
   18,397.13 : 38,368.69 = 38,368.69 : x
2. Step 2: Convert to fraction form
   18,397.13/38,368.69 = 38,368.69/x
3. Step 3: Cross multiply
   18,397.13x = 38,368.69 × 38,368.69
4. Step 4: Simplify right side
   18,397.13x = 1,472,156,180.47
5. Step 5: Solve for x
   x = 1,472,156,180.47/18,397.13
6. Step 6: Final answer
   x = 80,020.99