Finding the Third Proportional to 59,664 and 80,739

Step by Step Solution

1. Step 1: Write the proportion equation
   59,664 : 80,739 = 80,739 : x
2. Step 2: Convert to fraction form
   59,664/80,739 = 80,739/x
3. Step 3: Cross multiply
   59,664x = 80,739 × 80,739
4. Step 4: Simplify right side
   59,664x = 6,518,786,121
5. Step 5: Solve for x
   x = 6,518,786,121/59,664
6. Step 6: Final answer
   x = 109,258.28