Finding the Third Proportional to 209,466 and 443,196

Step by Step Solution

1. Step 1: Write the proportion equation
   209,466 : 443,196 = 443,196 : x
2. Step 2: Convert to fraction form
   209,466/443,196 = 443,196/x
3. Step 3: Cross multiply
   209,466x = 443,196 × 443,196
4. Step 4: Simplify right side
   209,466x = 196,422,694,416
5. Step 5: Solve for x
   x = 196,422,694,416/209,466
6. Step 6: Final answer
   x = 937,730.68