Finding the Third Proportional to 1,772,978 and 3,919,204

Step by Step Solution

1. Step 1: Write the proportion equation
   1,772,978 : 3,919,204 = 3,919,204 : x
2. Step 2: Convert to fraction form
   1,772,978/3,919,204 = 3,919,204/x
3. Step 3: Cross multiply
   1,772,978x = 3,919,204 × 3,919,204
4. Step 4: Simplify right side
   1,772,978x = 15,360,159,993,616
5. Step 5: Solve for x
   x = 15,360,159,993,616/1,772,978
6. Step 6: Final answer
   x = 8,663,480.31