Finding the Third Proportional to 39,480.75 and 53,183.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,480.75 : 53,183.25 = 53,183.25 : x
2. Step 2: Convert to fraction form
   39,480.75/53,183.25 = 53,183.25/x
3. Step 3: Cross multiply
   39,480.75x = 53,183.25 × 53,183.25
4. Step 4: Simplify right side
   39,480.75x = 2,828,458,080.56
5. Step 5: Solve for x
   x = 2,828,458,080.56/39,480.75
6. Step 6: Final answer
   x = 71,641.45