Finding the Third Proportional to 628,820 and 1,357,696

Step by Step Solution

1. Step 1: Write the proportion equation
   628,820 : 1,357,696 = 1,357,696 : x
2. Step 2: Convert to fraction form
   628,820/1,357,696 = 1,357,696/x
3. Step 3: Cross multiply
   628,820x = 1,357,696 × 1,357,696
4. Step 4: Simplify right side
   628,820x = 1,843,338,428,416
5. Step 5: Solve for x
   x = 1,843,338,428,416/628,820
6. Step 6: Final answer
   x = 2,931,424.62