Finding the Third Proportional to 296,890.50 and 635,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   296,890.50 : 635,815.50 = 635,815.50 : x
2. Step 2: Convert to fraction form
   296,890.50/635,815.50 = 635,815.50/x
3. Step 3: Cross multiply
   296,890.50x = 635,815.50 × 635,815.50
4. Step 4: Simplify right side
   296,890.50x = 404,261,350,040.25
5. Step 5: Solve for x
   x = 404,261,350,040.25/296,890.50
6. Step 6: Final answer
   x = 1,361,651.35