Finding the Third Proportional to 831,091 and 1,819,825

Step by Step Solution

1. Step 1: Write the proportion equation
   831,091 : 1,819,825 = 1,819,825 : x
2. Step 2: Convert to fraction form
   831,091/1,819,825 = 1,819,825/x
3. Step 3: Cross multiply
   831,091x = 1,819,825 × 1,819,825
4. Step 4: Simplify right side
   831,091x = 3,311,763,030,625
5. Step 5: Solve for x
   x = 3,311,763,030,625/831,091
6. Step 6: Final answer
   x = 3,984,838.04