Finding the Third Proportional to 40,607 and 59,679

Step by Step Solution

1. Step 1: Write the proportion equation
   40,607 : 59,679 = 59,679 : x
2. Step 2: Convert to fraction form
   40,607/59,679 = 59,679/x
3. Step 3: Cross multiply
   40,607x = 59,679 × 59,679
4. Step 4: Simplify right side
   40,607x = 3,561,583,041
5. Step 5: Solve for x
   x = 3,561,583,041/40,607
6. Step 6: Final answer
   x = 87,708.60