Finding the Third Proportional to 30,660 and 65,694

Step by Step Solution

1. Step 1: Write the proportion equation
   30,660 : 65,694 = 65,694 : x
2. Step 2: Convert to fraction form
   30,660/65,694 = 65,694/x
3. Step 3: Cross multiply
   30,660x = 65,694 × 65,694
4. Step 4: Simplify right side
   30,660x = 4,315,701,636
5. Step 5: Solve for x
   x = 4,315,701,636/30,660
6. Step 6: Final answer
   x = 140,760.00