Finding the Third Proportional to 998,476 and 2,154,404

Step by Step Solution

1. Step 1: Write the proportion equation
   998,476 : 2,154,404 = 2,154,404 : x
2. Step 2: Convert to fraction form
   998,476/2,154,404 = 2,154,404/x
3. Step 3: Cross multiply
   998,476x = 2,154,404 × 2,154,404
4. Step 4: Simplify right side
   998,476x = 4,641,456,595,216
5. Step 5: Solve for x
   x = 4,641,456,595,216/998,476
6. Step 6: Final answer
   x = 4,648,540.97