Finding the Third Proportional to 4,163,618 and 9,284,586

Step by Step Solution

1. Step 1: Write the proportion equation
   4,163,618 : 9,284,586 = 9,284,586 : x
2. Step 2: Convert to fraction form
   4,163,618/9,284,586 = 9,284,586/x
3. Step 3: Cross multiply
   4,163,618x = 9,284,586 × 9,284,586
4. Step 4: Simplify right side
   4,163,618x = 86,203,537,191,396
5. Step 5: Solve for x
   x = 86,203,537,191,396/4,163,618
6. Step 6: Final answer
   x = 20,703,997.63