Finding the Third Proportional to 91,434 and 199,956

Step by Step Solution

1. Step 1: Write the proportion equation
   91,434 : 199,956 = 199,956 : x
2. Step 2: Convert to fraction form
   91,434/199,956 = 199,956/x
3. Step 3: Cross multiply
   91,434x = 199,956 × 199,956
4. Step 4: Simplify right side
   91,434x = 39,982,401,936
5. Step 5: Solve for x
   x = 39,982,401,936/91,434
6. Step 6: Final answer
   x = 437,281.56