Finding the Third Proportional to 9,508 and 12,120

Step by Step Solution

1. Step 1: Write the proportion equation
   9,508 : 12,120 = 12,120 : x
2. Step 2: Convert to fraction form
   9,508/12,120 = 12,120/x
3. Step 3: Cross multiply
   9,508x = 12,120 × 12,120
4. Step 4: Simplify right side
   9,508x = 146,894,400
5. Step 5: Solve for x
   x = 146,894,400/9,508
6. Step 6: Final answer
   x = 15,449.56