Finding the Third Proportional to 56,118 and 123,306

Step by Step Solution

1. Step 1: Write the proportion equation
   56,118 : 123,306 = 123,306 : x
2. Step 2: Convert to fraction form
   56,118/123,306 = 123,306/x
3. Step 3: Cross multiply
   56,118x = 123,306 × 123,306
4. Step 4: Simplify right side
   56,118x = 15,204,369,636
5. Step 5: Solve for x
   x = 15,204,369,636/56,118
6. Step 6: Final answer
   x = 270,935.70