Finding the Third Proportional to 1,722,386 and 4,022,991

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722,386 : 4,022,991 = 4,022,991 : x
2. Step 2: Convert to fraction form
   1,722,386/4,022,991 = 4,022,991/x
3. Step 3: Cross multiply
   1,722,386x = 4,022,991 × 4,022,991
4. Step 4: Simplify right side
   1,722,386x = 16,184,456,586,081
5. Step 5: Solve for x
   x = 16,184,456,586,081/1,722,386
6. Step 6: Final answer
   x = 9,396,532.82