Finding the Third Proportional to 2,800 and 3,916

Step by Step Solution

1. Step 1: Write the proportion equation
   2,800 : 3,916 = 3,916 : x
2. Step 2: Convert to fraction form
   2,800/3,916 = 3,916/x
3. Step 3: Cross multiply
   2,800x = 3,916 × 3,916
4. Step 4: Simplify right side
   2,800x = 15,335,056
5. Step 5: Solve for x
   x = 15,335,056/2,800
6. Step 6: Final answer
   x = 5,476.81