Finding the Third Proportional to 628,634 and 1,356,844

Step by Step Solution

1. Step 1: Write the proportion equation
   628,634 : 1,356,844 = 1,356,844 : x
2. Step 2: Convert to fraction form
   628,634/1,356,844 = 1,356,844/x
3. Step 3: Cross multiply
   628,634x = 1,356,844 × 1,356,844
4. Step 4: Simplify right side
   628,634x = 1,841,025,640,336
5. Step 5: Solve for x
   x = 1,841,025,640,336/628,634
6. Step 6: Final answer
   x = 2,928,612.90