Finding the Third Proportional to 198,057.50 and 298,036

Step by Step Solution

1. Step 1: Write the proportion equation
   198,057.50 : 298,036 = 298,036 : x
2. Step 2: Convert to fraction form
   198,057.50/298,036 = 298,036/x
3. Step 3: Cross multiply
   198,057.50x = 298,036 × 298,036
4. Step 4: Simplify right side
   198,057.50x = 88,825,457,296
5. Step 5: Solve for x
   x = 88,825,457,296/198,057.50
6. Step 6: Final answer
   x = 448,483.18