Finding the Third Proportional to 249,454 and 443,496

Step by Step Solution

1. Step 1: Write the proportion equation
   249,454 : 443,496 = 443,496 : x
2. Step 2: Convert to fraction form
   249,454/443,496 = 443,496/x
3. Step 3: Cross multiply
   249,454x = 443,496 × 443,496
4. Step 4: Simplify right side
   249,454x = 196,688,702,016
5. Step 5: Solve for x
   x = 196,688,702,016/249,454
6. Step 6: Final answer
   x = 788,476.84