Finding the Third Proportional to 1,239,924 and 2,628,664

Step by Step Solution

1. Step 1: Write the proportion equation
   1,239,924 : 2,628,664 = 2,628,664 : x
2. Step 2: Convert to fraction form
   1,239,924/2,628,664 = 2,628,664/x
3. Step 3: Cross multiply
   1,239,924x = 2,628,664 × 2,628,664
4. Step 4: Simplify right side
   1,239,924x = 6,909,874,424,896
5. Step 5: Solve for x
   x = 6,909,874,424,896/1,239,924
6. Step 6: Final answer
   x = 5,572,820.93