Finding the Third Proportional to 40,686 and 59,161.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,686 : 59,161.50 = 59,161.50 : x
2. Step 2: Convert to fraction form
   40,686/59,161.50 = 59,161.50/x
3. Step 3: Cross multiply
   40,686x = 59,161.50 × 59,161.50
4. Step 4: Simplify right side
   40,686x = 3,500,083,082.25
5. Step 5: Solve for x
   x = 3,500,083,082.25/40,686
6. Step 6: Final answer
   x = 86,026.72