Finding the Third Proportional to 10,197 and 10,989

Step by Step Solution

1. Step 1: Write the proportion equation
   10,197 : 10,989 = 10,989 : x
2. Step 2: Convert to fraction form
   10,197/10,989 = 10,989/x
3. Step 3: Cross multiply
   10,197x = 10,989 × 10,989
4. Step 4: Simplify right side
   10,197x = 120,758,121
5. Step 5: Solve for x
   x = 120,758,121/10,197
6. Step 6: Final answer
   x = 11,842.51