Finding the Third Proportional to 3,992.06 and 8,584.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,992.06 : 8,584.88 = 8,584.88 : x
2. Step 2: Convert to fraction form
   3,992.06/8,584.88 = 8,584.88/x
3. Step 3: Cross multiply
   3,992.06x = 8,584.88 × 8,584.88
4. Step 4: Simplify right side
   3,992.06x = 73,700,078.77
5. Step 5: Solve for x
   x = 73,700,078.77/3,992.06
6. Step 6: Final answer
   x = 18,461.65