Finding the Third Proportional to 839,132 and 1,290,554

Step by Step Solution

1. Step 1: Write the proportion equation
   839,132 : 1,290,554 = 1,290,554 : x
2. Step 2: Convert to fraction form
   839,132/1,290,554 = 1,290,554/x
3. Step 3: Cross multiply
   839,132x = 1,290,554 × 1,290,554
4. Step 4: Simplify right side
   839,132x = 1,665,529,626,916
5. Step 5: Solve for x
   x = 1,665,529,626,916/839,132
6. Step 6: Final answer
   x = 1,984,824.35