Finding the Third Proportional to 3,591,635 and 7,980,434

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591,635 : 7,980,434 = 7,980,434 : x
2. Step 2: Convert to fraction form
   3,591,635/7,980,434 = 7,980,434/x
3. Step 3: Cross multiply
   3,591,635x = 7,980,434 × 7,980,434
4. Step 4: Simplify right side
   3,591,635x = 63,687,326,828,356
5. Step 5: Solve for x
   x = 63,687,326,828,356/3,591,635
6. Step 6: Final answer
   x = 17,732,126.69