Finding the Third Proportional to 323,139 and 661,950

Step by Step Solution

1. Step 1: Write the proportion equation
   323,139 : 661,950 = 661,950 : x
2. Step 2: Convert to fraction form
   323,139/661,950 = 661,950/x
3. Step 3: Cross multiply
   323,139x = 661,950 × 661,950
4. Step 4: Simplify right side
   323,139x = 438,177,802,500
5. Step 5: Solve for x
   x = 438,177,802,500/323,139
6. Step 6: Final answer
   x = 1,356,004.08