Finding the Third Proportional to 123,039 and 188,622

Step by Step Solution

1. Step 1: Write the proportion equation
   123,039 : 188,622 = 188,622 : x
2. Step 2: Convert to fraction form
   123,039/188,622 = 188,622/x
3. Step 3: Cross multiply
   123,039x = 188,622 × 188,622
4. Step 4: Simplify right side
   123,039x = 35,578,258,884
5. Step 5: Solve for x
   x = 35,578,258,884/123,039
6. Step 6: Final answer
   x = 289,162.45