Finding the Third Proportional to 285,856 and 627,008

Step by Step Solution

1. Step 1: Write the proportion equation
   285,856 : 627,008 = 627,008 : x
2. Step 2: Convert to fraction form
   285,856/627,008 = 627,008/x
3. Step 3: Cross multiply
   285,856x = 627,008 × 627,008
4. Step 4: Simplify right side
   285,856x = 393,139,032,064
5. Step 5: Solve for x
   x = 393,139,032,064/285,856
6. Step 6: Final answer
   x = 1,375,304.46