Finding the Third Proportional to 8,007,836 and 12,409,851

Step by Step Solution

1. Step 1: Write the proportion equation
   8,007,836 : 12,409,851 = 12,409,851 : x
2. Step 2: Convert to fraction form
   8,007,836/12,409,851 = 12,409,851/x
3. Step 3: Cross multiply
   8,007,836x = 12,409,851 × 12,409,851
4. Step 4: Simplify right side
   8,007,836x = 154,004,401,842,201
5. Step 5: Solve for x
   x = 154,004,401,842,201/8,007,836
6. Step 6: Final answer
   x = 19,231,712.77