Finding the Third Proportional to 831,084 and 1,819,809

Step by Step Solution

1. Step 1: Write the proportion equation
   831,084 : 1,819,809 = 1,819,809 : x
2. Step 2: Convert to fraction form
   831,084/1,819,809 = 1,819,809/x
3. Step 3: Cross multiply
   831,084x = 1,819,809 × 1,819,809
4. Step 4: Simplify right side
   831,084x = 3,311,704,796,481
5. Step 5: Solve for x
   x = 3,311,704,796,481/831,084
6. Step 6: Final answer
   x = 3,984,801.53