Finding the Third Proportional to 280,224 and 443,025

Step by Step Solution

1. Step 1: Write the proportion equation
   280,224 : 443,025 = 443,025 : x
2. Step 2: Convert to fraction form
   280,224/443,025 = 443,025/x
3. Step 3: Cross multiply
   280,224x = 443,025 × 443,025
4. Step 4: Simplify right side
   280,224x = 196,271,150,625
5. Step 5: Solve for x
   x = 196,271,150,625/280,224
6. Step 6: Final answer
   x = 700,408.07