Finding the Third Proportional to 56,683 and 123,302

Step by Step Solution

1. Step 1: Write the proportion equation
   56,683 : 123,302 = 123,302 : x
2. Step 2: Convert to fraction form
   56,683/123,302 = 123,302/x
3. Step 3: Cross multiply
   56,683x = 123,302 × 123,302
4. Step 4: Simplify right side
   56,683x = 15,203,383,204
5. Step 5: Solve for x
   x = 15,203,383,204/56,683
6. Step 6: Final answer
   x = 268,217.69