Finding the Third Proportional to 206,912 and 443,352

Step by Step Solution

1. Step 1: Write the proportion equation
   206,912 : 443,352 = 443,352 : x
2. Step 2: Convert to fraction form
   206,912/443,352 = 443,352/x
3. Step 3: Cross multiply
   206,912x = 443,352 × 443,352
4. Step 4: Simplify right side
   206,912x = 196,560,995,904
5. Step 5: Solve for x
   x = 196,560,995,904/206,912
6. Step 6: Final answer
   x = 949,973.88