Finding the Third Proportional to 3,973,269 and 8,581,618

Step by Step Solution

1. Step 1: Write the proportion equation
   3,973,269 : 8,581,618 = 8,581,618 : x
2. Step 2: Convert to fraction form
   3,973,269/8,581,618 = 8,581,618/x
3. Step 3: Cross multiply
   3,973,269x = 8,581,618 × 8,581,618
4. Step 4: Simplify right side
   3,973,269x = 73,644,167,497,924
5. Step 5: Solve for x
   x = 73,644,167,497,924/3,973,269
6. Step 6: Final answer
   x = 18,534,906.02