Finding the Third Proportional to 124,283.50 and 186,439

Step by Step Solution

1. Step 1: Write the proportion equation
   124,283.50 : 186,439 = 186,439 : x
2. Step 2: Convert to fraction form
   124,283.50/186,439 = 186,439/x
3. Step 3: Cross multiply
   124,283.50x = 186,439 × 186,439
4. Step 4: Simplify right side
   124,283.50x = 34,759,500,721
5. Step 5: Solve for x
   x = 34,759,500,721/124,283.50
6. Step 6: Final answer
   x = 279,679.13