Finding the Third Proportional to 287,626 and 627,160

Step by Step Solution

1. Step 1: Write the proportion equation
   287,626 : 627,160 = 627,160 : x
2. Step 2: Convert to fraction form
   287,626/627,160 = 627,160/x
3. Step 3: Cross multiply
   287,626x = 627,160 × 627,160
4. Step 4: Simplify right side
   287,626x = 393,329,665,600
5. Step 5: Solve for x
   x = 393,329,665,600/287,626
6. Step 6: Final answer
   x = 1,367,503.86