Finding the Third Proportional to 80,485,434 and 174,581,649

Step by Step Solution

1. Step 1: Write the proportion equation
   80,485,434 : 174,581,649 = 174,581,649 : x
2. Step 2: Convert to fraction form
   80,485,434/174,581,649 = 174,581,649/x
3. Step 3: Cross multiply
   80,485,434x = 174,581,649 × 174,581,649
4. Step 4: Simplify right side
   80,485,434x = 30,478,752,167,559,200
5. Step 5: Solve for x
   x = 30,478,752,167,559,200/80,485,434
6. Step 6: Final answer
   x = 378,686,560.45