Finding the Third Proportional to 8,859.38 and 13,116.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,859.38 : 13,116.94 = 13,116.94 : x
2. Step 2: Convert to fraction form
   8,859.38/13,116.94 = 13,116.94/x
3. Step 3: Cross multiply
   8,859.38x = 13,116.94 × 13,116.94
4. Step 4: Simplify right side
   8,859.38x = 172,054,049.38
5. Step 5: Solve for x
   x = 172,054,049.38/8,859.38
6. Step 6: Final answer
   x = 19,420.56