Finding the Third Proportional to 12,099 and 25,650

Step by Step Solution

1. Step 1: Write the proportion equation
   12,099 : 25,650 = 25,650 : x
2. Step 2: Convert to fraction form
   12,099/25,650 = 25,650/x
3. Step 3: Cross multiply
   12,099x = 25,650 × 25,650
4. Step 4: Simplify right side
   12,099x = 657,922,500
5. Step 5: Solve for x
   x = 657,922,500/12,099
6. Step 6: Final answer
   x = 54,378.25