Finding the Third Proportional to 17,639.88 and 27,021.75

Step by Step Solution

1. Step 1: Write the proportion equation
   17,639.88 : 27,021.75 = 27,021.75 : x
2. Step 2: Convert to fraction form
   17,639.88/27,021.75 = 27,021.75/x
3. Step 3: Cross multiply
   17,639.88x = 27,021.75 × 27,021.75
4. Step 4: Simplify right side
   17,639.88x = 730,174,973.06
5. Step 5: Solve for x
   x = 730,174,973.06/17,639.88
6. Step 6: Final answer
   x = 41,393.43