Finding the Third Proportional to 338,632 and 722,264

Step by Step Solution

1. Step 1: Write the proportion equation
   338,632 : 722,264 = 722,264 : x
2. Step 2: Convert to fraction form
   338,632/722,264 = 722,264/x
3. Step 3: Cross multiply
   338,632x = 722,264 × 722,264
4. Step 4: Simplify right side
   338,632x = 521,665,285,696
5. Step 5: Solve for x
   x = 521,665,285,696/338,632
6. Step 6: Final answer
   x = 1,540,507.94