Finding the Third Proportional to 9,628 and 12,154

Step by Step Solution

1. Step 1: Write the proportion equation
   9,628 : 12,154 = 12,154 : x
2. Step 2: Convert to fraction form
   9,628/12,154 = 12,154/x
3. Step 3: Cross multiply
   9,628x = 12,154 × 12,154
4. Step 4: Simplify right side
   9,628x = 147,719,716
5. Step 5: Solve for x
   x = 147,719,716/9,628
6. Step 6: Final answer
   x = 15,342.72