Finding the Third Proportional to 91,214 and 200,410

Step by Step Solution

1. Step 1: Write the proportion equation
   91,214 : 200,410 = 200,410 : x
2. Step 2: Convert to fraction form
   91,214/200,410 = 200,410/x
3. Step 3: Cross multiply
   91,214x = 200,410 × 200,410
4. Step 4: Simplify right side
   91,214x = 40,164,168,100
5. Step 5: Solve for x
   x = 40,164,168,100/91,214
6. Step 6: Final answer
   x = 440,328.99