Finding the Third Proportional to 90,673.50 and 195,945

Step by Step Solution

1. Step 1: Write the proportion equation
   90,673.50 : 195,945 = 195,945 : x
2. Step 2: Convert to fraction form
   90,673.50/195,945 = 195,945/x
3. Step 3: Cross multiply
   90,673.50x = 195,945 × 195,945
4. Step 4: Simplify right side
   90,673.50x = 38,394,443,025
5. Step 5: Solve for x
   x = 38,394,443,025/90,673.50
6. Step 6: Final answer
   x = 423,436.21