Finding the Third Proportional to 321,702 and 635,329.50

Step by Step Solution

1. Step 1: Write the proportion equation
   321,702 : 635,329.50 = 635,329.50 : x
2. Step 2: Convert to fraction form
   321,702/635,329.50 = 635,329.50/x
3. Step 3: Cross multiply
   321,702x = 635,329.50 × 635,329.50
4. Step 4: Simplify right side
   321,702x = 403,643,573,570.25
5. Step 5: Solve for x
   x = 403,643,573,570.25/321,702
6. Step 6: Final answer
   x = 1,254,712.66