Finding the Third Proportional to 404,928 and 628,614

Step by Step Solution

1. Step 1: Write the proportion equation
   404,928 : 628,614 = 628,614 : x
2. Step 2: Convert to fraction form
   404,928/628,614 = 628,614/x
3. Step 3: Cross multiply
   404,928x = 628,614 × 628,614
4. Step 4: Simplify right side
   404,928x = 395,155,560,996
5. Step 5: Solve for x
   x = 395,155,560,996/404,928
6. Step 6: Final answer
   x = 975,866.23