Finding the Third Proportional to 40,262 and 56,638

Step by Step Solution

1. Step 1: Write the proportion equation
   40,262 : 56,638 = 56,638 : x
2. Step 2: Convert to fraction form
   40,262/56,638 = 56,638/x
3. Step 3: Cross multiply
   40,262x = 56,638 × 56,638
4. Step 4: Simplify right side
   40,262x = 3,207,863,044
5. Step 5: Solve for x
   x = 3,207,863,044/40,262
6. Step 6: Final answer
   x = 79,674.71