Finding the Third Proportional to 3,907,519 and 8,331,166

Step by Step Solution

1. Step 1: Write the proportion equation
   3,907,519 : 8,331,166 = 8,331,166 : x
2. Step 2: Convert to fraction form
   3,907,519/8,331,166 = 8,331,166/x
3. Step 3: Cross multiply
   3,907,519x = 8,331,166 × 8,331,166
4. Step 4: Simplify right side
   3,907,519x = 69,408,326,919,556
5. Step 5: Solve for x
   x = 69,408,326,919,556/3,907,519
6. Step 6: Final answer
   x = 17,762,761.21