Finding the Third Proportional to 2,156 and 4,060

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156 : 4,060 = 4,060 : x
2. Step 2: Convert to fraction form
   2,156/4,060 = 4,060/x
3. Step 3: Cross multiply
   2,156x = 4,060 × 4,060
4. Step 4: Simplify right side
   2,156x = 16,483,600
5. Step 5: Solve for x
   x = 16,483,600/2,156
6. Step 6: Final answer
   x = 7,645.45