Finding the Third Proportional to 123,055 and 268,886

Step by Step Solution

1. Step 1: Write the proportion equation
   123,055 : 268,886 = 268,886 : x
2. Step 2: Convert to fraction form
   123,055/268,886 = 268,886/x
3. Step 3: Cross multiply
   123,055x = 268,886 × 268,886
4. Step 4: Simplify right side
   123,055x = 72,299,680,996
5. Step 5: Solve for x
   x = 72,299,680,996/123,055
6. Step 6: Final answer
   x = 587,539.56