Finding the Third Proportional to 20,143.69 and 30,916.69

Step by Step Solution

1. Step 1: Write the proportion equation
   20,143.69 : 30,916.69 = 30,916.69 : x
2. Step 2: Convert to fraction form
   20,143.69/30,916.69 = 30,916.69/x
3. Step 3: Cross multiply
   20,143.69x = 30,916.69 × 30,916.69
4. Step 4: Simplify right side
   20,143.69x = 955,841,565.97
5. Step 5: Solve for x
   x = 955,841,565.97/20,143.69
6. Step 6: Final answer
   x = 47,451.17