Finding the Third Proportional to 245,224 and 329,540

Step by Step Solution

1. Step 1: Write the proportion equation
   245,224 : 329,540 = 329,540 : x
2. Step 2: Convert to fraction form
   245,224/329,540 = 329,540/x
3. Step 3: Cross multiply
   245,224x = 329,540 × 329,540
4. Step 4: Simplify right side
   245,224x = 108,596,611,600
5. Step 5: Solve for x
   x = 108,596,611,600/245,224
6. Step 6: Final answer
   x = 442,846.59