Finding the Third Proportional to 55,629.75 and 86,297.25

Step by Step Solution

1. Step 1: Write the proportion equation
   55,629.75 : 86,297.25 = 86,297.25 : x
2. Step 2: Convert to fraction form
   55,629.75/86,297.25 = 86,297.25/x
3. Step 3: Cross multiply
   55,629.75x = 86,297.25 × 86,297.25
4. Step 4: Simplify right side
   55,629.75x = 7,447,215,357.56
5. Step 5: Solve for x
   x = 7,447,215,357.56/55,629.75
6. Step 6: Final answer
   x = 133,871.09