Finding the Third Proportional to 854,404 and 1,868,400

Step by Step Solution

1. Step 1: Write the proportion equation
   854,404 : 1,868,400 = 1,868,400 : x
2. Step 2: Convert to fraction form
   854,404/1,868,400 = 1,868,400/x
3. Step 3: Cross multiply
   854,404x = 1,868,400 × 1,868,400
4. Step 4: Simplify right side
   854,404x = 3,490,918,560,000
5. Step 5: Solve for x
   x = 3,490,918,560,000/854,404
6. Step 6: Final answer
   x = 4,085,793.79