Finding the Third Proportional to 206,985 and 443,490

Step by Step Solution

1. Step 1: Write the proportion equation
   206,985 : 443,490 = 443,490 : x
2. Step 2: Convert to fraction form
   206,985/443,490 = 443,490/x
3. Step 3: Cross multiply
   206,985x = 443,490 × 443,490
4. Step 4: Simplify right side
   206,985x = 196,683,380,100
5. Step 5: Solve for x
   x = 196,683,380,100/206,985
6. Step 6: Final answer
   x = 950,230.11