Finding the Third Proportional to 218,538 and 476,792

Step by Step Solution

1. Step 1: Write the proportion equation
   218,538 : 476,792 = 476,792 : x
2. Step 2: Convert to fraction form
   218,538/476,792 = 476,792/x
3. Step 3: Cross multiply
   218,538x = 476,792 × 476,792
4. Step 4: Simplify right side
   218,538x = 227,330,611,264
5. Step 5: Solve for x
   x = 227,330,611,264/218,538
6. Step 6: Final answer
   x = 1,040,233.79