Finding the Third Proportional to 12,630 and 20,100

Step by Step Solution

1. Step 1: Write the proportion equation
   12,630 : 20,100 = 20,100 : x
2. Step 2: Convert to fraction form
   12,630/20,100 = 20,100/x
3. Step 3: Cross multiply
   12,630x = 20,100 × 20,100
4. Step 4: Simplify right side
   12,630x = 404,010,000
5. Step 5: Solve for x
   x = 404,010,000/12,630
6. Step 6: Final answer
   x = 31,988.12