Finding the Third Proportional to 831,488 and 1,820,928

Step by Step Solution

1. Step 1: Write the proportion equation
   831,488 : 1,820,928 = 1,820,928 : x
2. Step 2: Convert to fraction form
   831,488/1,820,928 = 1,820,928/x
3. Step 3: Cross multiply
   831,488x = 1,820,928 × 1,820,928
4. Step 4: Simplify right side
   831,488x = 3,315,778,781,184
5. Step 5: Solve for x
   x = 3,315,778,781,184/831,488
6. Step 6: Final answer
   x = 3,987,765.04