Finding the Third Proportional to 9,198 and 12,485

Step by Step Solution

1. Step 1: Write the proportion equation
   9,198 : 12,485 = 12,485 : x
2. Step 2: Convert to fraction form
   9,198/12,485 = 12,485/x
3. Step 3: Cross multiply
   9,198x = 12,485 × 12,485
4. Step 4: Simplify right side
   9,198x = 155,875,225
5. Step 5: Solve for x
   x = 155,875,225/9,198
6. Step 6: Final answer
   x = 16,946.64