Finding the Third Proportional to 124,816.50 and 268,290

Step by Step Solution

1. Step 1: Write the proportion equation
   124,816.50 : 268,290 = 268,290 : x
2. Step 2: Convert to fraction form
   124,816.50/268,290 = 268,290/x
3. Step 3: Cross multiply
   124,816.50x = 268,290 × 268,290
4. Step 4: Simplify right side
   124,816.50x = 71,979,524,100
5. Step 5: Solve for x
   x = 71,979,524,100/124,816.50
6. Step 6: Final answer
   x = 576,682.76