Finding the Third Proportional to 56,672.25 and 85,017.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,672.25 : 85,017.75 = 85,017.75 : x
2. Step 2: Convert to fraction form
   56,672.25/85,017.75 = 85,017.75/x
3. Step 3: Cross multiply
   56,672.25x = 85,017.75 × 85,017.75
4. Step 4: Simplify right side
   56,672.25x = 7,228,017,815.06
5. Step 5: Solve for x
   x = 7,228,017,815.06/56,672.25
6. Step 6: Final answer
   x = 127,540.69