Finding the Third Proportional to 196,537.50 and 428,791.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,537.50 : 428,791.50 = 428,791.50 : x
2. Step 2: Convert to fraction form
   196,537.50/428,791.50 = 428,791.50/x
3. Step 3: Cross multiply
   196,537.50x = 428,791.50 × 428,791.50
4. Step 4: Simplify right side
   196,537.50x = 183,862,150,472.25
5. Step 5: Solve for x
   x = 183,862,150,472.25/196,537.50
6. Step 6: Final answer
   x = 935,506.71