Finding the Third Proportional to 59,143.50 and 91,631.25

Step by Step Solution

1. Step 1: Write the proportion equation
   59,143.50 : 91,631.25 = 91,631.25 : x
2. Step 2: Convert to fraction form
   59,143.50/91,631.25 = 91,631.25/x
3. Step 3: Cross multiply
   59,143.50x = 91,631.25 × 91,631.25
4. Step 4: Simplify right side
   59,143.50x = 8,396,285,976.56
5. Step 5: Solve for x
   x = 8,396,285,976.56/59,143.50
6. Step 6: Final answer
   x = 141,964.64