Finding the Third Proportional to 4,183,144 and 8,868,576

Step by Step Solution

1. Step 1: Write the proportion equation
   4,183,144 : 8,868,576 = 8,868,576 : x
2. Step 2: Convert to fraction form
   4,183,144/8,868,576 = 8,868,576/x
3. Step 3: Cross multiply
   4,183,144x = 8,868,576 × 8,868,576
4. Step 4: Simplify right side
   4,183,144x = 78,651,640,267,776
5. Step 5: Solve for x
   x = 78,651,640,267,776/4,183,144
6. Step 6: Final answer
   x = 18,802,039.87