Finding the Third Proportional to 287,055 and 448,024

Step by Step Solution

1. Step 1: Write the proportion equation
   287,055 : 448,024 = 448,024 : x
2. Step 2: Convert to fraction form
   287,055/448,024 = 448,024/x
3. Step 3: Cross multiply
   287,055x = 448,024 × 448,024
4. Step 4: Simplify right side
   287,055x = 200,725,504,576
5. Step 5: Solve for x
   x = 200,725,504,576/287,055
6. Step 6: Final answer
   x = 699,258.00