Finding the Third Proportional to 99,820.50 and 146,811

Step by Step Solution

1. Step 1: Write the proportion equation
   99,820.50 : 146,811 = 146,811 : x
2. Step 2: Convert to fraction form
   99,820.50/146,811 = 146,811/x
3. Step 3: Cross multiply
   99,820.50x = 146,811 × 146,811
4. Step 4: Simplify right side
   99,820.50x = 21,553,469,721
5. Step 5: Solve for x
   x = 21,553,469,721/99,820.50
6. Step 6: Final answer
   x = 215,922.28