Finding the Third Proportional to 124,389 and 186,387.38

Step by Step Solution

1. Step 1: Write the proportion equation
   124,389 : 186,387.38 = 186,387.38 : x
2. Step 2: Convert to fraction form
   124,389/186,387.38 = 186,387.38/x
3. Step 3: Cross multiply
   124,389x = 186,387.38 × 186,387.38
4. Step 4: Simplify right side
   124,389x = 34,740,253,559.39
5. Step 5: Solve for x
   x = 34,740,253,559.39/124,389
6. Step 6: Final answer
   x = 279,287.18