Finding the Third Proportional to 1,778,976 and 2,621,424

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778,976 : 2,621,424 = 2,621,424 : x
2. Step 2: Convert to fraction form
   1,778,976/2,621,424 = 2,621,424/x
3. Step 3: Cross multiply
   1,778,976x = 2,621,424 × 2,621,424
4. Step 4: Simplify right side
   1,778,976x = 6,871,863,787,776
5. Step 5: Solve for x
   x = 6,871,863,787,776/1,778,976
6. Step 6: Final answer
   x = 3,862,819.84