Finding the Third Proportional to 628,624 and 1,356,824

Step by Step Solution

1. Step 1: Write the proportion equation
   628,624 : 1,356,824 = 1,356,824 : x
2. Step 2: Convert to fraction form
   628,624/1,356,824 = 1,356,824/x
3. Step 3: Cross multiply
   628,624x = 1,356,824 × 1,356,824
4. Step 4: Simplify right side
   628,624x = 1,840,971,366,976
5. Step 5: Solve for x
   x = 1,840,971,366,976/628,624
6. Step 6: Final answer
   x = 2,928,573.15