Finding the Third Proportional to 91,021.50 and 142,472.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,021.50 : 142,472.25 = 142,472.25 : x
2. Step 2: Convert to fraction form
   91,021.50/142,472.25 = 142,472.25/x
3. Step 3: Cross multiply
   91,021.50x = 142,472.25 × 142,472.25
4. Step 4: Simplify right side
   91,021.50x = 20,298,342,020.06
5. Step 5: Solve for x
   x = 20,298,342,020.06/91,021.50
6. Step 6: Final answer
   x = 223,006.02