Finding the Third Proportional to 323,689.50 and 490,032

Step by Step Solution

1. Step 1: Write the proportion equation
   323,689.50 : 490,032 = 490,032 : x
2. Step 2: Convert to fraction form
   323,689.50/490,032 = 490,032/x
3. Step 3: Cross multiply
   323,689.50x = 490,032 × 490,032
4. Step 4: Simplify right side
   323,689.50x = 240,131,361,024
5. Step 5: Solve for x
   x = 240,131,361,024/323,689.50
6. Step 6: Final answer
   x = 741,857.12