Finding the Third Proportional to 2,154,843 and 3,213,578

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154,843 : 3,213,578 = 3,213,578 : x
2. Step 2: Convert to fraction form
   2,154,843/3,213,578 = 3,213,578/x
3. Step 3: Cross multiply
   2,154,843x = 3,213,578 × 3,213,578
4. Step 4: Simplify right side
   2,154,843x = 10,327,083,562,084
5. Step 5: Solve for x
   x = 10,327,083,562,084/2,154,843
6. Step 6: Final answer
   x = 4,792,499.30