Finding the Third Proportional to 140,998 and 288,874

Step by Step Solution

1. Step 1: Write the proportion equation
   140,998 : 288,874 = 288,874 : x
2. Step 2: Convert to fraction form
   140,998/288,874 = 288,874/x
3. Step 3: Cross multiply
   140,998x = 288,874 × 288,874
4. Step 4: Simplify right side
   140,998x = 83,448,187,876
5. Step 5: Solve for x
   x = 83,448,187,876/140,998
6. Step 6: Final answer
   x = 591,839.51