Finding the Third Proportional to 57,012 and 123,864

Step by Step Solution

1. Step 1: Write the proportion equation
   57,012 : 123,864 = 123,864 : x
2. Step 2: Convert to fraction form
   57,012/123,864 = 123,864/x
3. Step 3: Cross multiply
   57,012x = 123,864 × 123,864
4. Step 4: Simplify right side
   57,012x = 15,342,290,496
5. Step 5: Solve for x
   x = 15,342,290,496/57,012
6. Step 6: Final answer
   x = 269,106.34