Finding the Third Proportional to 326,168.25 and 661,507.25

Step by Step Solution

1. Step 1: Write the proportion equation
   326,168.25 : 661,507.25 = 661,507.25 : x
2. Step 2: Convert to fraction form
   326,168.25/661,507.25 = 661,507.25/x
3. Step 3: Cross multiply
   326,168.25x = 661,507.25 × 661,507.25
4. Step 4: Simplify right side
   326,168.25x = 437,591,841,802.56
5. Step 5: Solve for x
   x = 437,591,841,802.56/326,168.25
6. Step 6: Final answer
   x = 1,341,613.85