Finding the Third Proportional to 57,408.75 and 83,845.13

Step by Step Solution

1. Step 1: Write the proportion equation
   57,408.75 : 83,845.13 = 83,845.13 : x
2. Step 2: Convert to fraction form
   57,408.75/83,845.13 = 83,845.13/x
3. Step 3: Cross multiply
   57,408.75x = 83,845.13 × 83,845.13
4. Step 4: Simplify right side
   57,408.75x = 7,030,004,986.27
5. Step 5: Solve for x
   x = 7,030,004,986.27/57,408.75
6. Step 6: Final answer
   x = 122,455.29