Finding the Third Proportional to 3,156 and 3,976

Step by Step Solution

1. Step 1: Write the proportion equation
   3,156 : 3,976 = 3,976 : x
2. Step 2: Convert to fraction form
   3,156/3,976 = 3,976/x
3. Step 3: Cross multiply
   3,156x = 3,976 × 3,976
4. Step 4: Simplify right side
   3,156x = 15,808,576
5. Step 5: Solve for x
   x = 15,808,576/3,156
6. Step 6: Final answer
   x = 5,009.05