Finding the Third Proportional to 40,960.69 and 65,129.06

Step by Step Solution

1. Step 1: Write the proportion equation
   40,960.69 : 65,129.06 = 65,129.06 : x
2. Step 2: Convert to fraction form
   40,960.69/65,129.06 = 65,129.06/x
3. Step 3: Cross multiply
   40,960.69x = 65,129.06 × 65,129.06
4. Step 4: Simplify right side
   40,960.69x = 4,241,794,782.13
5. Step 5: Solve for x
   x = 4,241,794,782.13/40,960.69
6. Step 6: Final answer
   x = 103,557.70