Finding the Third Proportional to 8,220 and 10,002

Step by Step Solution

1. Step 1: Write the proportion equation
   8,220 : 10,002 = 10,002 : x
2. Step 2: Convert to fraction form
   8,220/10,002 = 10,002/x
3. Step 3: Cross multiply
   8,220x = 10,002 × 10,002
4. Step 4: Simplify right side
   8,220x = 100,040,004
5. Step 5: Solve for x
   x = 100,040,004/8,220
6. Step 6: Final answer
   x = 12,170.32