Finding the Third Proportional to 321,935.50 and 635,763.50

Step by Step Solution

1. Step 1: Write the proportion equation
   321,935.50 : 635,763.50 = 635,763.50 : x
2. Step 2: Convert to fraction form
   321,935.50/635,763.50 = 635,763.50/x
3. Step 3: Cross multiply
   321,935.50x = 635,763.50 × 635,763.50
4. Step 4: Simplify right side
   321,935.50x = 404,195,227,932.25
5. Step 5: Solve for x
   x = 404,195,227,932.25/321,935.50
6. Step 6: Final answer
   x = 1,255,516.18