Finding the Third Proportional to 8,140 and 12,325

Step by Step Solution

1. Step 1: Write the proportion equation
   8,140 : 12,325 = 12,325 : x
2. Step 2: Convert to fraction form
   8,140/12,325 = 12,325/x
3. Step 3: Cross multiply
   8,140x = 12,325 × 12,325
4. Step 4: Simplify right side
   8,140x = 151,905,625
5. Step 5: Solve for x
   x = 151,905,625/8,140
6. Step 6: Final answer
   x = 18,661.62