Finding the Third Proportional to 2,628,148 and 5,648,912

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628,148 : 5,648,912 = 5,648,912 : x
2. Step 2: Convert to fraction form
   2,628,148/5,648,912 = 5,648,912/x
3. Step 3: Cross multiply
   2,628,148x = 5,648,912 × 5,648,912
4. Step 4: Simplify right side
   2,628,148x = 31,910,206,783,744
5. Step 5: Solve for x
   x = 31,910,206,783,744/2,628,148
6. Step 6: Final answer
   x = 12,141,708.45