Finding the Third Proportional to 204,390 and 443,772

Step by Step Solution

1. Step 1: Write the proportion equation
   204,390 : 443,772 = 443,772 : x
2. Step 2: Convert to fraction form
   204,390/443,772 = 443,772/x
3. Step 3: Cross multiply
   204,390x = 443,772 × 443,772
4. Step 4: Simplify right side
   204,390x = 196,933,587,984
5. Step 5: Solve for x
   x = 196,933,587,984/204,390
6. Step 6: Final answer
   x = 963,518.70