Finding the Third Proportional to 323,700 and 490,050

Step by Step Solution

1. Step 1: Write the proportion equation
   323,700 : 490,050 = 490,050 : x
2. Step 2: Convert to fraction form
   323,700/490,050 = 490,050/x
3. Step 3: Cross multiply
   323,700x = 490,050 × 490,050
4. Step 4: Simplify right side
   323,700x = 240,149,002,500
5. Step 5: Solve for x
   x = 240,149,002,500/323,700
6. Step 6: Final answer
   x = 741,887.56