Finding the Third Proportional to 839,152 and 1,290,582

Step by Step Solution

1. Step 1: Write the proportion equation
   839,152 : 1,290,582 = 1,290,582 : x
2. Step 2: Convert to fraction form
   839,152/1,290,582 = 1,290,582/x
3. Step 3: Cross multiply
   839,152x = 1,290,582 × 1,290,582
4. Step 4: Simplify right side
   839,152x = 1,665,601,898,724
5. Step 5: Solve for x
   x = 1,665,601,898,724/839,152
6. Step 6: Final answer
   x = 1,984,863.17