Finding the Third Proportional to 4,061,792 and 8,920,816

Step by Step Solution

1. Step 1: Write the proportion equation
   4,061,792 : 8,920,816 = 8,920,816 : x
2. Step 2: Convert to fraction form
   4,061,792/8,920,816 = 8,920,816/x
3. Step 3: Cross multiply
   4,061,792x = 8,920,816 × 8,920,816
4. Step 4: Simplify right side
   4,061,792x = 79,580,958,105,856
5. Step 5: Solve for x
   x = 79,580,958,105,856/4,061,792
6. Step 6: Final answer
   x = 19,592,573.45