Finding the Third Proportional to 40,393 and 67,087

Step by Step Solution

1. Step 1: Write the proportion equation
   40,393 : 67,087 = 67,087 : x
2. Step 2: Convert to fraction form
   40,393/67,087 = 67,087/x
3. Step 3: Cross multiply
   40,393x = 67,087 × 67,087
4. Step 4: Simplify right side
   40,393x = 4,500,665,569
5. Step 5: Solve for x
   x = 4,500,665,569/40,393
6. Step 6: Final answer
   x = 111,421.92