Finding the Third Proportional to 209,008 and 443,840

Step by Step Solution

1. Step 1: Write the proportion equation
   209,008 : 443,840 = 443,840 : x
2. Step 2: Convert to fraction form
   209,008/443,840 = 443,840/x
3. Step 3: Cross multiply
   209,008x = 443,840 × 443,840
4. Step 4: Simplify right side
   209,008x = 196,993,945,600
5. Step 5: Solve for x
   x = 196,993,945,600/209,008
6. Step 6: Final answer
   x = 942,518.69