Finding the Third Proportional to 854,413 and 1,819,256

Step by Step Solution

1. Step 1: Write the proportion equation
   854,413 : 1,819,256 = 1,819,256 : x
2. Step 2: Convert to fraction form
   854,413/1,819,256 = 1,819,256/x
3. Step 3: Cross multiply
   854,413x = 1,819,256 × 1,819,256
4. Step 4: Simplify right side
   854,413x = 3,309,692,393,536
5. Step 5: Solve for x
   x = 3,309,692,393,536/854,413
6. Step 6: Final answer
   x = 3,873,644.71