Finding the Third Proportional to 288,324 and 443,770

Step by Step Solution

1. Step 1: Write the proportion equation
   288,324 : 443,770 = 443,770 : x
2. Step 2: Convert to fraction form
   288,324/443,770 = 443,770/x
3. Step 3: Cross multiply
   288,324x = 443,770 × 443,770
4. Step 4: Simplify right side
   288,324x = 196,931,812,900
5. Step 5: Solve for x
   x = 196,931,812,900/288,324
6. Step 6: Final answer
   x = 683,022.62