Finding the Third Proportional to 3,521,072 and 7,714,647

Step by Step Solution

1. Step 1: Write the proportion equation
   3,521,072 : 7,714,647 = 7,714,647 : x
2. Step 2: Convert to fraction form
   3,521,072/7,714,647 = 7,714,647/x
3. Step 3: Cross multiply
   3,521,072x = 7,714,647 × 7,714,647
4. Step 4: Simplify right side
   3,521,072x = 59,515,778,334,609
5. Step 5: Solve for x
   x = 59,515,778,334,609/3,521,072
6. Step 6: Final answer
   x = 16,902,743.92