Finding the Third Proportional to 40,282 and 52,128

Step by Step Solution

1. Step 1: Write the proportion equation
   40,282 : 52,128 = 52,128 : x
2. Step 2: Convert to fraction form
   40,282/52,128 = 52,128/x
3. Step 3: Cross multiply
   40,282x = 52,128 × 52,128
4. Step 4: Simplify right side
   40,282x = 2,717,328,384
5. Step 5: Solve for x
   x = 2,717,328,384/40,282
6. Step 6: Final answer
   x = 67,457.63