Finding the Third Proportional to 7,860,647 and 17,105,256

Step by Step Solution

1. Step 1: Write the proportion equation
   7,860,647 : 17,105,256 = 17,105,256 : x
2. Step 2: Convert to fraction form
   7,860,647/17,105,256 = 17,105,256/x
3. Step 3: Cross multiply
   7,860,647x = 17,105,256 × 17,105,256
4. Step 4: Simplify right side
   7,860,647x = 292,589,782,825,536
5. Step 5: Solve for x
   x = 292,589,782,825,536/7,860,647
6. Step 6: Final answer
   x = 37,222,099.25