Finding the Third Proportional to 3,817,978 and 8,233,722

Step by Step Solution

1. Step 1: Write the proportion equation
   3,817,978 : 8,233,722 = 8,233,722 : x
2. Step 2: Convert to fraction form
   3,817,978/8,233,722 = 8,233,722/x
3. Step 3: Cross multiply
   3,817,978x = 8,233,722 × 8,233,722
4. Step 4: Simplify right side
   3,817,978x = 67,794,177,973,284
5. Step 5: Solve for x
   x = 67,794,177,973,284/3,817,978
6. Step 6: Final answer
   x = 17,756,565.90