Finding the Third Proportional to 839,150 and 1,290,579

Step by Step Solution

1. Step 1: Write the proportion equation
   839,150 : 1,290,579 = 1,290,579 : x
2. Step 2: Convert to fraction form
   839,150/1,290,579 = 1,290,579/x
3. Step 3: Cross multiply
   839,150x = 1,290,579 × 1,290,579
4. Step 4: Simplify right side
   839,150x = 1,665,594,155,241
5. Step 5: Solve for x
   x = 1,665,594,155,241/839,150
6. Step 6: Final answer
   x = 1,984,858.67