Finding the Third Proportional to 56,986 and 123,631

Step by Step Solution

1. Step 1: Write the proportion equation
   56,986 : 123,631 = 123,631 : x
2. Step 2: Convert to fraction form
   56,986/123,631 = 123,631/x
3. Step 3: Cross multiply
   56,986x = 123,631 × 123,631
4. Step 4: Simplify right side
   56,986x = 15,284,624,161
5. Step 5: Solve for x
   x = 15,284,624,161/56,986
6. Step 6: Final answer
   x = 268,217.18