Finding the Third Proportional to 12,286.69 and 18,903.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,286.69 : 18,903.38 = 18,903.38 : x
2. Step 2: Convert to fraction form
   12,286.69/18,903.38 = 18,903.38/x
3. Step 3: Cross multiply
   12,286.69x = 18,903.38 × 18,903.38
4. Step 4: Simplify right side
   12,286.69x = 357,337,586.39
5. Step 5: Solve for x
   x = 357,337,586.39/12,286.69
6. Step 6: Final answer
   x = 29,083.31