Finding the Third Proportional to 3,914 and 5,142

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914 : 5,142 = 5,142 : x
2. Step 2: Convert to fraction form
   3,914/5,142 = 5,142/x
3. Step 3: Cross multiply
   3,914x = 5,142 × 5,142
4. Step 4: Simplify right side
   3,914x = 26,440,164
5. Step 5: Solve for x
   x = 26,440,164/3,914
6. Step 6: Final answer
   x = 6,755.28