Finding the Third Proportional to 4,212,207 and 8,214,462

Step by Step Solution

1. Step 1: Write the proportion equation
   4,212,207 : 8,214,462 = 8,214,462 : x
2. Step 2: Convert to fraction form
   4,212,207/8,214,462 = 8,214,462/x
3. Step 3: Cross multiply
   4,212,207x = 8,214,462 × 8,214,462
4. Step 4: Simplify right side
   4,212,207x = 67,477,385,949,444
5. Step 5: Solve for x
   x = 67,477,385,949,444/4,212,207
6. Step 6: Final answer
   x = 16,019,484.79