Finding the Third Proportional to 854,394 and 1,819,218

Step by Step Solution

1. Step 1: Write the proportion equation
   854,394 : 1,819,218 = 1,819,218 : x
2. Step 2: Convert to fraction form
   854,394/1,819,218 = 1,819,218/x
3. Step 3: Cross multiply
   854,394x = 1,819,218 × 1,819,218
4. Step 4: Simplify right side
   854,394x = 3,309,554,131,524
5. Step 5: Solve for x
   x = 3,309,554,131,524/854,394
6. Step 6: Final answer
   x = 3,873,569.02