Finding the Third Proportional to 123,074 and 268,928

Step by Step Solution

1. Step 1: Write the proportion equation
   123,074 : 268,928 = 268,928 : x
2. Step 2: Convert to fraction form
   123,074/268,928 = 268,928/x
3. Step 3: Cross multiply
   123,074x = 268,928 × 268,928
4. Step 4: Simplify right side
   123,074x = 72,322,269,184
5. Step 5: Solve for x
   x = 72,322,269,184/123,074
6. Step 6: Final answer
   x = 587,632.39