Finding the Third Proportional to 91,960.31 and 142,443.56

Step by Step Solution

1. Step 1: Write the proportion equation
   91,960.31 : 142,443.56 = 142,443.56 : x
2. Step 2: Convert to fraction form
   91,960.31/142,443.56 = 142,443.56/x
3. Step 3: Cross multiply
   91,960.31x = 142,443.56 × 142,443.56
4. Step 4: Simplify right side
   91,960.31x = 20,290,168,497.69
5. Step 5: Solve for x
   x = 20,290,168,497.69/91,960.31
6. Step 6: Final answer
   x = 220,640.49