Finding the Third Proportional to 218,172 and 477,048

Step by Step Solution

1. Step 1: Write the proportion equation
   218,172 : 477,048 = 477,048 : x
2. Step 2: Convert to fraction form
   218,172/477,048 = 477,048/x
3. Step 3: Cross multiply
   218,172x = 477,048 × 477,048
4. Step 4: Simplify right side
   218,172x = 227,574,794,304
5. Step 5: Solve for x
   x = 227,574,794,304/218,172
6. Step 6: Final answer
   x = 1,043,098.08