Finding the Third Proportional to 21,983.91 and 53,137.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,983.91 : 53,137.27 = 53,137.27 : x
2. Step 2: Convert to fraction form
   21,983.91/53,137.27 = 53,137.27/x
3. Step 3: Cross multiply
   21,983.91x = 53,137.27 × 53,137.27
4. Step 4: Simplify right side
   21,983.91x = 2,823,568,998.10
5. Step 5: Solve for x
   x = 2,823,568,998.10/21,983.91
6. Step 6: Final answer
   x = 128,438.00