Finding the Third Proportional to 199,795.50 and 428,022

Step by Step Solution

1. Step 1: Write the proportion equation
   199,795.50 : 428,022 = 428,022 : x
2. Step 2: Convert to fraction form
   199,795.50/428,022 = 428,022/x
3. Step 3: Cross multiply
   199,795.50x = 428,022 × 428,022
4. Step 4: Simplify right side
   199,795.50x = 183,202,832,484
5. Step 5: Solve for x
   x = 183,202,832,484/199,795.50
6. Step 6: Final answer
   x = 916,951.75