Finding the Third Proportional to 3,591,633 and 7,980,430

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591,633 : 7,980,430 = 7,980,430 : x
2. Step 2: Convert to fraction form
   3,591,633/7,980,430 = 7,980,430/x
3. Step 3: Cross multiply
   3,591,633x = 7,980,430 × 7,980,430
4. Step 4: Simplify right side
   3,591,633x = 63,687,262,984,900
5. Step 5: Solve for x
   x = 63,687,262,984,900/3,591,633
6. Step 6: Final answer
   x = 17,732,118.78