Finding the Third Proportional to 3,790,653 and 5,420,670

Step by Step Solution

1. Step 1: Write the proportion equation
   3,790,653 : 5,420,670 = 5,420,670 : x
2. Step 2: Convert to fraction form
   3,790,653/5,420,670 = 5,420,670/x
3. Step 3: Cross multiply
   3,790,653x = 5,420,670 × 5,420,670
4. Step 4: Simplify right side
   3,790,653x = 29,383,663,248,900
5. Step 5: Solve for x
   x = 29,383,663,248,900/3,790,653
6. Step 6: Final answer
   x = 7,751,609.88