Finding the Third Proportional to 2,972 and 3,910

Step by Step Solution

1. Step 1: Write the proportion equation
   2,972 : 3,910 = 3,910 : x
2. Step 2: Convert to fraction form
   2,972/3,910 = 3,910/x
3. Step 3: Cross multiply
   2,972x = 3,910 × 3,910
4. Step 4: Simplify right side
   2,972x = 15,288,100
5. Step 5: Solve for x
   x = 15,288,100/2,972
6. Step 6: Final answer
   x = 5,144.04