Finding the Third Proportional to 39,970.50 and 57,745.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,970.50 : 57,745.50 = 57,745.50 : x
2. Step 2: Convert to fraction form
   39,970.50/57,745.50 = 57,745.50/x
3. Step 3: Cross multiply
   39,970.50x = 57,745.50 × 57,745.50
4. Step 4: Simplify right side
   39,970.50x = 3,334,542,770.25
5. Step 5: Solve for x
   x = 3,334,542,770.25/39,970.50
6. Step 6: Final answer
   x = 83,425.10