Finding the Third Proportional to 39,453.75 and 55,494.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,453.75 : 55,494.75 = 55,494.75 : x
2. Step 2: Convert to fraction form
   39,453.75/55,494.75 = 55,494.75/x
3. Step 3: Cross multiply
   39,453.75x = 55,494.75 × 55,494.75
4. Step 4: Simplify right side
   39,453.75x = 3,079,667,277.56
5. Step 5: Solve for x
   x = 3,079,667,277.56/39,453.75
6. Step 6: Final answer
   x = 78,057.66