Finding the Third Proportional to 5,156 and 12,442

Step by Step Solution

1. Step 1: Write the proportion equation
   5,156 : 12,442 = 12,442 : x
2. Step 2: Convert to fraction form
   5,156/12,442 = 12,442/x
3. Step 3: Cross multiply
   5,156x = 12,442 × 12,442
4. Step 4: Simplify right side
   5,156x = 154,803,364
5. Step 5: Solve for x
   x = 154,803,364/5,156
6. Step 6: Final answer
   x = 30,023.93