Finding the Third Proportional to 3,158,618 and 4,501,671

Step by Step Solution

1. Step 1: Write the proportion equation
   3,158,618 : 4,501,671 = 4,501,671 : x
2. Step 2: Convert to fraction form
   3,158,618/4,501,671 = 4,501,671/x
3. Step 3: Cross multiply
   3,158,618x = 4,501,671 × 4,501,671
4. Step 4: Simplify right side
   3,158,618x = 20,265,041,792,241
5. Step 5: Solve for x
   x = 20,265,041,792,241/3,158,618
6. Step 6: Final answer
   x = 6,415,793.80