Finding the Third Proportional to 40,618 and 60,589

Step by Step Solution

1. Step 1: Write the proportion equation
   40,618 : 60,589 = 60,589 : x
2. Step 2: Convert to fraction form
   40,618/60,589 = 60,589/x
3. Step 3: Cross multiply
   40,618x = 60,589 × 60,589
4. Step 4: Simplify right side
   40,618x = 3,671,026,921
5. Step 5: Solve for x
   x = 3,671,026,921/40,618
6. Step 6: Final answer
   x = 90,379.31