Finding the Third Proportional to 21,738.38 and 29,117.81

Step by Step Solution

1. Step 1: Write the proportion equation
   21,738.38 : 29,117.81 = 29,117.81 : x
2. Step 2: Convert to fraction form
   21,738.38/29,117.81 = 29,117.81/x
3. Step 3: Cross multiply
   21,738.38x = 29,117.81 × 29,117.81
4. Step 4: Simplify right side
   21,738.38x = 847,847,004.79
5. Step 5: Solve for x
   x = 847,847,004.79/21,738.38
6. Step 6: Final answer
   x = 39,002.32