Finding the Third Proportional to 3,907,515 and 8,331,158

Step by Step Solution

1. Step 1: Write the proportion equation
   3,907,515 : 8,331,158 = 8,331,158 : x
2. Step 2: Convert to fraction form
   3,907,515/8,331,158 = 8,331,158/x
3. Step 3: Cross multiply
   3,907,515x = 8,331,158 × 8,331,158
4. Step 4: Simplify right side
   3,907,515x = 69,408,193,620,964
5. Step 5: Solve for x
   x = 69,408,193,620,964/3,907,515
6. Step 6: Final answer
   x = 17,762,745.28