Finding the Third Proportional to 213,516 and 494,238

Step by Step Solution

1. Step 1: Write the proportion equation
   213,516 : 494,238 = 494,238 : x
2. Step 2: Convert to fraction form
   213,516/494,238 = 494,238/x
3. Step 3: Cross multiply
   213,516x = 494,238 × 494,238
4. Step 4: Simplify right side
   213,516x = 244,271,200,644
5. Step 5: Solve for x
   x = 244,271,200,644/213,516
6. Step 6: Final answer
   x = 1,144,041.67