Finding the Third Proportional to 67,712 and 103,078

Step by Step Solution

1. Step 1: Write the proportion equation
   67,712 : 103,078 = 103,078 : x
2. Step 2: Convert to fraction form
   67,712/103,078 = 103,078/x
3. Step 3: Cross multiply
   67,712x = 103,078 × 103,078
4. Step 4: Simplify right side
   67,712x = 10,625,074,084
5. Step 5: Solve for x
   x = 10,625,074,084/67,712
6. Step 6: Final answer
   x = 156,915.67