Finding the Third Proportional to 288,484 and 627,766

Step by Step Solution

1. Step 1: Write the proportion equation
   288,484 : 627,766 = 627,766 : x
2. Step 2: Convert to fraction form
   288,484/627,766 = 627,766/x
3. Step 3: Cross multiply
   288,484x = 627,766 × 627,766
4. Step 4: Simplify right side
   288,484x = 394,090,150,756
5. Step 5: Solve for x
   x = 394,090,150,756/288,484
6. Step 6: Final answer
   x = 1,366,072.82