Finding the Third Proportional to 839,810 and 1,131,411

Step by Step Solution

1. Step 1: Write the proportion equation
   839,810 : 1,131,411 = 1,131,411 : x
2. Step 2: Convert to fraction form
   839,810/1,131,411 = 1,131,411/x
3. Step 3: Cross multiply
   839,810x = 1,131,411 × 1,131,411
4. Step 4: Simplify right side
   839,810x = 1,280,090,850,921
5. Step 5: Solve for x
   x = 1,280,090,850,921/839,810
6. Step 6: Final answer
   x = 1,524,262.45