Finding the Third Proportional to 57,745.69 and 86,383.13

Step by Step Solution

1. Step 1: Write the proportion equation
   57,745.69 : 86,383.13 = 86,383.13 : x
2. Step 2: Convert to fraction form
   57,745.69/86,383.13 = 86,383.13/x
3. Step 3: Cross multiply
   57,745.69x = 86,383.13 × 86,383.13
4. Step 4: Simplify right side
   57,745.69x = 7,462,044,284.77
5. Step 5: Solve for x
   x = 7,462,044,284.77/57,745.69
6. Step 6: Final answer
   x = 129,222.54