Finding the Third Proportional to 3,790,664 and 5,420,692

Step by Step Solution

1. Step 1: Write the proportion equation
   3,790,664 : 5,420,692 = 5,420,692 : x
2. Step 2: Convert to fraction form
   3,790,664/5,420,692 = 5,420,692/x
3. Step 3: Cross multiply
   3,790,664x = 5,420,692 × 5,420,692
4. Step 4: Simplify right side
   3,790,664x = 29,383,901,758,864
5. Step 5: Solve for x
   x = 29,383,901,758,864/3,790,664
6. Step 6: Final answer
   x = 7,751,650.31