Finding the Third Proportional to 3,171,644 and 4,831,821

Step by Step Solution

1. Step 1: Write the proportion equation
   3,171,644 : 4,831,821 = 4,831,821 : x
2. Step 2: Convert to fraction form
   3,171,644/4,831,821 = 4,831,821/x
3. Step 3: Cross multiply
   3,171,644x = 4,831,821 × 4,831,821
4. Step 4: Simplify right side
   3,171,644x = 23,346,494,176,041
5. Step 5: Solve for x
   x = 23,346,494,176,041/3,171,644
6. Step 6: Final answer
   x = 7,361,007.15