Finding the Third Proportional to 91,045.50 and 198,696

Step by Step Solution

1. Step 1: Write the proportion equation
   91,045.50 : 198,696 = 198,696 : x
2. Step 2: Convert to fraction form
   91,045.50/198,696 = 198,696/x
3. Step 3: Cross multiply
   91,045.50x = 198,696 × 198,696
4. Step 4: Simplify right side
   91,045.50x = 39,480,100,416
5. Step 5: Solve for x
   x = 39,480,100,416/91,045.50
6. Step 6: Final answer
   x = 433,630.44