Finding the Third Proportional to 3,644,072 and 8,436,179

Step by Step Solution

1. Step 1: Write the proportion equation
   3,644,072 : 8,436,179 = 8,436,179 : x
2. Step 2: Convert to fraction form
   3,644,072/8,436,179 = 8,436,179/x
3. Step 3: Cross multiply
   3,644,072x = 8,436,179 × 8,436,179
4. Step 4: Simplify right side
   3,644,072x = 71,169,116,120,041
5. Step 5: Solve for x
   x = 71,169,116,120,041/3,644,072
6. Step 6: Final answer
   x = 19,530,107.01