Finding the Third Proportional to 323,714.25 and 660,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   323,714.25 : 660,280.50 = 660,280.50 : x
2. Step 2: Convert to fraction form
   323,714.25/660,280.50 = 660,280.50/x
3. Step 3: Cross multiply
   323,714.25x = 660,280.50 × 660,280.50
4. Step 4: Simplify right side
   323,714.25x = 435,970,338,680.25
5. Step 5: Solve for x
   x = 435,970,338,680.25/323,714.25
6. Step 6: Final answer
   x = 1,346,775.25