Finding the Third Proportional to 52,721.25 and 80,648.25

Step by Step Solution

1. Step 1: Write the proportion equation
   52,721.25 : 80,648.25 = 80,648.25 : x
2. Step 2: Convert to fraction form
   52,721.25/80,648.25 = 80,648.25/x
3. Step 3: Cross multiply
   52,721.25x = 80,648.25 × 80,648.25
4. Step 4: Simplify right side
   52,721.25x = 6,504,140,228.06
5. Step 5: Solve for x
   x = 6,504,140,228.06/52,721.25
6. Step 6: Final answer
   x = 123,368.48