Finding the Third Proportional to 40,959.75 and 65,128.13

Step by Step Solution

1. Step 1: Write the proportion equation
   40,959.75 : 65,128.13 = 65,128.13 : x
2. Step 2: Convert to fraction form
   40,959.75/65,128.13 = 65,128.13/x
3. Step 3: Cross multiply
   40,959.75x = 65,128.13 × 65,128.13
4. Step 4: Simplify right side
   40,959.75x = 4,241,672,666.02
5. Step 5: Solve for x
   x = 4,241,672,666.02/40,959.75
6. Step 6: Final answer
   x = 103,557.09