Finding the Third Proportional to 39,502.69 and 65,389.78

Step by Step Solution

1. Step 1: Write the proportion equation
   39,502.69 : 65,389.78 = 65,389.78 : x
2. Step 2: Convert to fraction form
   39,502.69/65,389.78 = 65,389.78/x
3. Step 3: Cross multiply
   39,502.69x = 65,389.78 × 65,389.78
4. Step 4: Simplify right side
   39,502.69x = 4,275,823,491.92
5. Step 5: Solve for x
   x = 4,275,823,491.92/39,502.69
6. Step 6: Final answer
   x = 108,241.33