Finding the Third Proportional to 91,230 and 200,442

Step by Step Solution

1. Step 1: Write the proportion equation
   91,230 : 200,442 = 200,442 : x
2. Step 2: Convert to fraction form
   91,230/200,442 = 200,442/x
3. Step 3: Cross multiply
   91,230x = 200,442 × 200,442
4. Step 4: Simplify right side
   91,230x = 40,176,995,364
5. Step 5: Solve for x
   x = 40,176,995,364/91,230
6. Step 6: Final answer
   x = 440,392.36