Finding the Third Proportional to 2,890 and 5,156

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890 : 5,156 = 5,156 : x
2. Step 2: Convert to fraction form
   2,890/5,156 = 5,156/x
3. Step 3: Cross multiply
   2,890x = 5,156 × 5,156
4. Step 4: Simplify right side
   2,890x = 26,584,336
5. Step 5: Solve for x
   x = 26,584,336/2,890
6. Step 6: Final answer
   x = 9,198.73