Finding the Third Proportional to 90,775.50 and 199,573.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,775.50 : 199,573.50 = 199,573.50 : x
2. Step 2: Convert to fraction form
   90,775.50/199,573.50 = 199,573.50/x
3. Step 3: Cross multiply
   90,775.50x = 199,573.50 × 199,573.50
4. Step 4: Simplify right side
   90,775.50x = 39,829,581,902.25
5. Step 5: Solve for x
   x = 39,829,581,902.25/90,775.50
6. Step 6: Final answer
   x = 438,770.17