Finding the Third Proportional to 3,790,660 and 5,420,688

Step by Step Solution

1. Step 1: Write the proportion equation
   3,790,660 : 5,420,688 = 5,420,688 : x
2. Step 2: Convert to fraction form
   3,790,660/5,420,688 = 5,420,688/x
3. Step 3: Cross multiply
   3,790,660x = 5,420,688 × 5,420,688
4. Step 4: Simplify right side
   3,790,660x = 29,383,858,393,344
5. Step 5: Solve for x
   x = 29,383,858,393,344/3,790,660
6. Step 6: Final answer
   x = 7,751,647.05