Finding the Third Proportional to 8,416,648 and 12,309,960

Step by Step Solution

1. Step 1: Write the proportion equation
   8,416,648 : 12,309,960 = 12,309,960 : x
2. Step 2: Convert to fraction form
   8,416,648/12,309,960 = 12,309,960/x
3. Step 3: Cross multiply
   8,416,648x = 12,309,960 × 12,309,960
4. Step 4: Simplify right side
   8,416,648x = 151,535,115,201,600
5. Step 5: Solve for x
   x = 151,535,115,201,600/8,416,648
6. Step 6: Final answer
   x = 18,004,212.03