Finding the Third Proportional to 123,039 and 168,723

Step by Step Solution

1. Step 1: Write the proportion equation
   123,039 : 168,723 = 168,723 : x
2. Step 2: Convert to fraction form
   123,039/168,723 = 168,723/x
3. Step 3: Cross multiply
   123,039x = 168,723 × 168,723
4. Step 4: Simplify right side
   123,039x = 28,467,450,729
5. Step 5: Solve for x
   x = 28,467,450,729/123,039
6. Step 6: Final answer
   x = 231,369.33