Finding the Third Proportional to 216,668 and 483,128

Step by Step Solution

1. Step 1: Write the proportion equation
   216,668 : 483,128 = 483,128 : x
2. Step 2: Convert to fraction form
   216,668/483,128 = 483,128/x
3. Step 3: Cross multiply
   216,668x = 483,128 × 483,128
4. Step 4: Simplify right side
   216,668x = 233,412,664,384
5. Step 5: Solve for x
   x = 233,412,664,384/216,668
6. Step 6: Final answer
   x = 1,077,282.59