Finding the Third Proportional to 90,634 and 200,028

Step by Step Solution

1. Step 1: Write the proportion equation
   90,634 : 200,028 = 200,028 : x
2. Step 2: Convert to fraction form
   90,634/200,028 = 200,028/x
3. Step 3: Cross multiply
   90,634x = 200,028 × 200,028
4. Step 4: Simplify right side
   90,634x = 40,011,200,784
5. Step 5: Solve for x
   x = 40,011,200,784/90,634
6. Step 6: Final answer
   x = 441,459.06