Finding the Third Proportional to 1,309,928 and 2,022,780

Step by Step Solution

1. Step 1: Write the proportion equation
   1,309,928 : 2,022,780 = 2,022,780 : x
2. Step 2: Convert to fraction form
   1,309,928/2,022,780 = 2,022,780/x
3. Step 3: Cross multiply
   1,309,928x = 2,022,780 × 2,022,780
4. Step 4: Simplify right side
   1,309,928x = 4,091,638,928,400
5. Step 5: Solve for x
   x = 4,091,638,928,400/1,309,928
6. Step 6: Final answer
   x = 3,123,560.17