Finding the Third Proportional to 1,239,910 and 2,628,612

Step by Step Solution

1. Step 1: Write the proportion equation
   1,239,910 : 2,628,612 = 2,628,612 : x
2. Step 2: Convert to fraction form
   1,239,910/2,628,612 = 2,628,612/x
3. Step 3: Cross multiply
   1,239,910x = 2,628,612 × 2,628,612
4. Step 4: Simplify right side
   1,239,910x = 6,909,601,046,544
5. Step 5: Solve for x
   x = 6,909,601,046,544/1,239,910
6. Step 6: Final answer
   x = 5,572,663.38