Finding the Third Proportional to 854,409 and 1,819,248

Step by Step Solution

1. Step 1: Write the proportion equation
   854,409 : 1,819,248 = 1,819,248 : x
2. Step 2: Convert to fraction form
   854,409/1,819,248 = 1,819,248/x
3. Step 3: Cross multiply
   854,409x = 1,819,248 × 1,819,248
4. Step 4: Simplify right side
   854,409x = 3,309,663,285,504
5. Step 5: Solve for x
   x = 3,309,663,285,504/854,409
6. Step 6: Final answer
   x = 3,873,628.77