Finding the Third Proportional to 628,968 and 1,328,928

Step by Step Solution

1. Step 1: Write the proportion equation
   628,968 : 1,328,928 = 1,328,928 : x
2. Step 2: Convert to fraction form
   628,968/1,328,928 = 1,328,928/x
3. Step 3: Cross multiply
   628,968x = 1,328,928 × 1,328,928
4. Step 4: Simplify right side
   628,968x = 1,766,049,629,184
5. Step 5: Solve for x
   x = 1,766,049,629,184/628,968
6. Step 6: Final answer
   x = 2,807,852.91