Finding the Third Proportional to 8,991 and 10,251

Step by Step Solution

1. Step 1: Write the proportion equation
   8,991 : 10,251 = 10,251 : x
2. Step 2: Convert to fraction form
   8,991/10,251 = 10,251/x
3. Step 3: Cross multiply
   8,991x = 10,251 × 10,251
4. Step 4: Simplify right side
   8,991x = 105,083,001
5. Step 5: Solve for x
   x = 105,083,001/8,991
6. Step 6: Final answer
   x = 11,687.58