Finding the Third Proportional to 8,505 and 12,251

Step by Step Solution

1. Step 1: Write the proportion equation
   8,505 : 12,251 = 12,251 : x
2. Step 2: Convert to fraction form
   8,505/12,251 = 12,251/x
3. Step 3: Cross multiply
   8,505x = 12,251 × 12,251
4. Step 4: Simplify right side
   8,505x = 150,087,001
5. Step 5: Solve for x
   x = 150,087,001/8,505
6. Step 6: Final answer
   x = 17,646.91