Finding the Third Proportional to 2,154,915 and 3,213,684

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154,915 : 3,213,684 = 3,213,684 : x
2. Step 2: Convert to fraction form
   2,154,915/3,213,684 = 3,213,684/x
3. Step 3: Cross multiply
   2,154,915x = 3,213,684 × 3,213,684
4. Step 4: Simplify right side
   2,154,915x = 10,327,764,851,856
5. Step 5: Solve for x
   x = 10,327,764,851,856/2,154,915
6. Step 6: Final answer
   x = 4,792,655.33