Finding the Third Proportional to 34,215.75 and 54,659.25

Step by Step Solution

1. Step 1: Write the proportion equation
   34,215.75 : 54,659.25 = 54,659.25 : x
2. Step 2: Convert to fraction form
   34,215.75/54,659.25 = 54,659.25/x
3. Step 3: Cross multiply
   34,215.75x = 54,659.25 × 54,659.25
4. Step 4: Simplify right side
   34,215.75x = 2,987,633,610.56
5. Step 5: Solve for x
   x = 2,987,633,610.56/34,215.75
6. Step 6: Final answer
   x = 87,317.50