Finding the Third Proportional to 12,196 and 18,428

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196 : 18,428 = 18,428 : x
2. Step 2: Convert to fraction form
   12,196/18,428 = 18,428/x
3. Step 3: Cross multiply
   12,196x = 18,428 × 18,428
4. Step 4: Simplify right side
   12,196x = 339,591,184
5. Step 5: Solve for x
   x = 339,591,184/12,196
6. Step 6: Final answer
   x = 27,844.47