Finding the Third Proportional to 245,200.50 and 328,860

Step by Step Solution

1. Step 1: Write the proportion equation
   245,200.50 : 328,860 = 328,860 : x
2. Step 2: Convert to fraction form
   245,200.50/328,860 = 328,860/x
3. Step 3: Cross multiply
   245,200.50x = 328,860 × 328,860
4. Step 4: Simplify right side
   245,200.50x = 108,148,899,600
5. Step 5: Solve for x
   x = 108,148,899,600/245,200.50
6. Step 6: Final answer
   x = 441,063.13