Finding the Third Proportional to 80,360,018 and 174,419,398

Step by Step Solution

1. Step 1: Write the proportion equation
   80,360,018 : 174,419,398 = 174,419,398 : x
2. Step 2: Convert to fraction form
   80,360,018/174,419,398 = 174,419,398/x
3. Step 3: Cross multiply
   80,360,018x = 174,419,398 × 174,419,398
4. Step 4: Simplify right side
   80,360,018x = 30,422,126,398,682,404
5. Step 5: Solve for x
   x = 30,422,126,398,682,404/80,360,018
6. Step 6: Final answer
   x = 378,572,916.68