Finding the Third Proportional to 1,239,922 and 2,628,660

Step by Step Solution

1. Step 1: Write the proportion equation
   1,239,922 : 2,628,660 = 2,628,660 : x
2. Step 2: Convert to fraction form
   1,239,922/2,628,660 = 2,628,660/x
3. Step 3: Cross multiply
   1,239,922x = 2,628,660 × 2,628,660
4. Step 4: Simplify right side
   1,239,922x = 6,909,853,395,600
5. Step 5: Solve for x
   x = 6,909,853,395,600/1,239,922
6. Step 6: Final answer
   x = 5,572,812.96