Finding the Third Proportional to 107,089.50 and 142,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   107,089.50 : 142,150.50 = 142,150.50 : x
2. Step 2: Convert to fraction form
   107,089.50/142,150.50 = 142,150.50/x
3. Step 3: Cross multiply
   107,089.50x = 142,150.50 × 142,150.50
4. Step 4: Simplify right side
   107,089.50x = 20,206,764,650.25
5. Step 5: Solve for x
   x = 20,206,764,650.25/107,089.50
6. Step 6: Final answer
   x = 188,690.44