Finding the Third Proportional to 59,216.75 and 91,020.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,216.75 : 91,020.75 = 91,020.75 : x
2. Step 2: Convert to fraction form
   59,216.75/91,020.75 = 91,020.75/x
3. Step 3: Cross multiply
   59,216.75x = 91,020.75 × 91,020.75
4. Step 4: Simplify right side
   59,216.75x = 8,284,776,930.56
5. Step 5: Solve for x
   x = 8,284,776,930.56/59,216.75
6. Step 6: Final answer
   x = 139,905.97