Finding the Third Proportional to 4,139.07 and 8,896.43

Step by Step Solution

1. Step 1: Write the proportion equation
   4,139.07 : 8,896.43 = 8,896.43 : x
2. Step 2: Convert to fraction form
   4,139.07/8,896.43 = 8,896.43/x
3. Step 3: Cross multiply
   4,139.07x = 8,896.43 × 8,896.43
4. Step 4: Simplify right side
   4,139.07x = 79,146,539.38
5. Step 5: Solve for x
   x = 79,146,539.38/4,139.07
6. Step 6: Final answer
   x = 19,121.82