Finding the Third Proportional to 839,920 and 1,297,012

Step by Step Solution

1. Step 1: Write the proportion equation
   839,920 : 1,297,012 = 1,297,012 : x
2. Step 2: Convert to fraction form
   839,920/1,297,012 = 1,297,012/x
3. Step 3: Cross multiply
   839,920x = 1,297,012 × 1,297,012
4. Step 4: Simplify right side
   839,920x = 1,682,240,128,144
5. Step 5: Solve for x
   x = 1,682,240,128,144/839,920
6. Step 6: Final answer
   x = 2,002,857.57