Finding the Third Proportional to 220,916 and 472,792

Step by Step Solution

1. Step 1: Write the proportion equation
   220,916 : 472,792 = 472,792 : x
2. Step 2: Convert to fraction form
   220,916/472,792 = 472,792/x
3. Step 3: Cross multiply
   220,916x = 472,792 × 472,792
4. Step 4: Simplify right side
   220,916x = 223,532,275,264
5. Step 5: Solve for x
   x = 223,532,275,264/220,916
6. Step 6: Final answer
   x = 1,011,842.85