Finding the Third Proportional to 91,105 and 200,147

Step by Step Solution

1. Step 1: Write the proportion equation
   91,105 : 200,147 = 200,147 : x
2. Step 2: Convert to fraction form
   91,105/200,147 = 200,147/x
3. Step 3: Cross multiply
   91,105x = 200,147 × 200,147
4. Step 4: Simplify right side
   91,105x = 40,058,821,609
5. Step 5: Solve for x
   x = 40,058,821,609/91,105
6. Step 6: Final answer
   x = 439,699.49