Finding the Third Proportional to 30,512.72 and 65,960.48

Step by Step Solution

1. Step 1: Write the proportion equation
   30,512.72 : 65,960.48 = 65,960.48 : x
2. Step 2: Convert to fraction form
   30,512.72/65,960.48 = 65,960.48/x
3. Step 3: Cross multiply
   30,512.72x = 65,960.48 × 65,960.48
4. Step 4: Simplify right side
   30,512.72x = 4,350,785,498.98
5. Step 5: Solve for x
   x = 4,350,785,498.98/30,512.72
6. Step 6: Final answer
   x = 142,589.24