Finding the Third Proportional to 10,812 and 12,300

Step by Step Solution

1. Step 1: Write the proportion equation
   10,812 : 12,300 = 12,300 : x
2. Step 2: Convert to fraction form
   10,812/12,300 = 12,300/x
3. Step 3: Cross multiply
   10,812x = 12,300 × 12,300
4. Step 4: Simplify right side
   10,812x = 151,290,000
5. Step 5: Solve for x
   x = 151,290,000/10,812
6. Step 6: Final answer
   x = 13,992.79