Finding the Third Proportional to 123,078 and 268,932

Step by Step Solution

1. Step 1: Write the proportion equation
   123,078 : 268,932 = 268,932 : x
2. Step 2: Convert to fraction form
   123,078/268,932 = 268,932/x
3. Step 3: Cross multiply
   123,078x = 268,932 × 268,932
4. Step 4: Simplify right side
   123,078x = 72,324,420,624
5. Step 5: Solve for x
   x = 72,324,420,624/123,078
6. Step 6: Final answer
   x = 587,630.78