Finding the Third Proportional to 40,589 and 60,718

Step by Step Solution

1. Step 1: Write the proportion equation
   40,589 : 60,718 = 60,718 : x
2. Step 2: Convert to fraction form
   40,589/60,718 = 60,718/x
3. Step 3: Cross multiply
   40,589x = 60,718 × 60,718
4. Step 4: Simplify right side
   40,589x = 3,686,675,524
5. Step 5: Solve for x
   x = 3,686,675,524/40,589
6. Step 6: Final answer
   x = 90,829.42