Finding the Third Proportional to 39,754.50 and 55,721.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,754.50 : 55,721.25 = 55,721.25 : x
2. Step 2: Convert to fraction form
   39,754.50/55,721.25 = 55,721.25/x
3. Step 3: Cross multiply
   39,754.50x = 55,721.25 × 55,721.25
4. Step 4: Simplify right side
   39,754.50x = 3,104,857,701.56
5. Step 5: Solve for x
   x = 3,104,857,701.56/39,754.50
6. Step 6: Final answer
   x = 78,100.79