Finding the Third Proportional to 40,148.16 and 56,393.72

Step by Step Solution

1. Step 1: Write the proportion equation
   40,148.16 : 56,393.72 = 56,393.72 : x
2. Step 2: Convert to fraction form
   40,148.16/56,393.72 = 56,393.72/x
3. Step 3: Cross multiply
   40,148.16x = 56,393.72 × 56,393.72
4. Step 4: Simplify right side
   40,148.16x = 3,180,251,514.45
5. Step 5: Solve for x
   x = 3,180,251,514.45/40,148.16
6. Step 6: Final answer
   x = 79,212.89