Finding the Third Proportional to 199,576.50 and 301,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,576.50 : 301,429.50 = 301,429.50 : x
2. Step 2: Convert to fraction form
   199,576.50/301,429.50 = 301,429.50/x
3. Step 3: Cross multiply
   199,576.50x = 301,429.50 × 301,429.50
4. Step 4: Simplify right side
   199,576.50x = 90,859,743,470.25
5. Step 5: Solve for x
   x = 90,859,743,470.25/199,576.50
6. Step 6: Final answer
   x = 455,262.74