Finding the Third Proportional to 213,268 and 493,718

Step by Step Solution

1. Step 1: Write the proportion equation
   213,268 : 493,718 = 493,718 : x
2. Step 2: Convert to fraction form
   213,268/493,718 = 493,718/x
3. Step 3: Cross multiply
   213,268x = 493,718 × 493,718
4. Step 4: Simplify right side
   213,268x = 243,757,463,524
5. Step 5: Solve for x
   x = 243,757,463,524/213,268
6. Step 6: Final answer
   x = 1,142,963.14