Finding the Third Proportional to 326,736 and 693,792

Step by Step Solution

1. Step 1: Write the proportion equation
   326,736 : 693,792 = 693,792 : x
2. Step 2: Convert to fraction form
   326,736/693,792 = 693,792/x
3. Step 3: Cross multiply
   326,736x = 693,792 × 693,792
4. Step 4: Simplify right side
   326,736x = 481,347,339,264
5. Step 5: Solve for x
   x = 481,347,339,264/326,736
6. Step 6: Final answer
   x = 1,473,199.58