Finding the Third Proportional to 8,015 and 12,401

Step by Step Solution

1. Step 1: Write the proportion equation
   8,015 : 12,401 = 12,401 : x
2. Step 2: Convert to fraction form
   8,015/12,401 = 12,401/x
3. Step 3: Cross multiply
   8,015x = 12,401 × 12,401
4. Step 4: Simplify right side
   8,015x = 153,784,801
5. Step 5: Solve for x
   x = 153,784,801/8,015
6. Step 6: Final answer
   x = 19,187.12