Finding the Third Proportional to 123,034.50 and 268,305

Step by Step Solution

1. Step 1: Write the proportion equation
   123,034.50 : 268,305 = 268,305 : x
2. Step 2: Convert to fraction form
   123,034.50/268,305 = 268,305/x
3. Step 3: Cross multiply
   123,034.50x = 268,305 × 268,305
4. Step 4: Simplify right side
   123,034.50x = 71,987,573,025
5. Step 5: Solve for x
   x = 71,987,573,025/123,034.50
6. Step 6: Final answer
   x = 585,100.71