Finding the Third Proportional to 67,945.50 and 99,921

Step by Step Solution

1. Step 1: Write the proportion equation
   67,945.50 : 99,921 = 99,921 : x
2. Step 2: Convert to fraction form
   67,945.50/99,921 = 99,921/x
3. Step 3: Cross multiply
   67,945.50x = 99,921 × 99,921
4. Step 4: Simplify right side
   67,945.50x = 9,984,206,241
5. Step 5: Solve for x
   x = 9,984,206,241/67,945.50
6. Step 6: Final answer
   x = 146,944.33