Finding the Third Proportional to 203,540 and 435,090.75

Step by Step Solution

1. Step 1: Write the proportion equation
   203,540 : 435,090.75 = 435,090.75 : x
2. Step 2: Convert to fraction form
   203,540/435,090.75 = 435,090.75/x
3. Step 3: Cross multiply
   203,540x = 435,090.75 × 435,090.75
4. Step 4: Simplify right side
   203,540x = 189,303,960,735.56
5. Step 5: Solve for x
   x = 189,303,960,735.56/203,540
6. Step 6: Final answer
   x = 930,057.78