Finding the Third Proportional to 8,809.88 and 12,884.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,809.88 : 12,884.06 = 12,884.06 : x
2. Step 2: Convert to fraction form
   8,809.88/12,884.06 = 12,884.06/x
3. Step 3: Cross multiply
   8,809.88x = 12,884.06 × 12,884.06
4. Step 4: Simplify right side
   8,809.88x = 165,999,066.50
5. Step 5: Solve for x
   x = 165,999,066.50/8,809.88
6. Step 6: Final answer
   x = 18,842.39