Finding the Third Proportional to 1,915,864 and 3,192,978

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915,864 : 3,192,978 = 3,192,978 : x
2. Step 2: Convert to fraction form
   1,915,864/3,192,978 = 3,192,978/x
3. Step 3: Cross multiply
   1,915,864x = 3,192,978 × 3,192,978
4. Step 4: Simplify right side
   1,915,864x = 10,195,108,508,484
5. Step 5: Solve for x
   x = 10,195,108,508,484/1,915,864
6. Step 6: Final answer
   x = 5,321,415.56