Finding the Third Proportional to 90,493.50 and 198,834

Step by Step Solution

1. Step 1: Write the proportion equation
   90,493.50 : 198,834 = 198,834 : x
2. Step 2: Convert to fraction form
   90,493.50/198,834 = 198,834/x
3. Step 3: Cross multiply
   90,493.50x = 198,834 × 198,834
4. Step 4: Simplify right side
   90,493.50x = 39,534,959,556
5. Step 5: Solve for x
   x = 39,534,959,556/90,493.50
6. Step 6: Final answer
   x = 436,881.76