Finding the Third Proportional to 10,718 and 12,122

Step by Step Solution

1. Step 1: Write the proportion equation
   10,718 : 12,122 = 12,122 : x
2. Step 2: Convert to fraction form
   10,718/12,122 = 12,122/x
3. Step 3: Cross multiply
   10,718x = 12,122 × 12,122
4. Step 4: Simplify right side
   10,718x = 146,942,884
5. Step 5: Solve for x
   x = 146,942,884/10,718
6. Step 6: Final answer
   x = 13,709.92