Finding the Third Proportional to 328,600.50 and 718,026

Step by Step Solution

1. Step 1: Write the proportion equation
   328,600.50 : 718,026 = 718,026 : x
2. Step 2: Convert to fraction form
   328,600.50/718,026 = 718,026/x
3. Step 3: Cross multiply
   328,600.50x = 718,026 × 718,026
4. Step 4: Simplify right side
   328,600.50x = 515,561,336,676
5. Step 5: Solve for x
   x = 515,561,336,676/328,600.50
6. Step 6: Final answer
   x = 1,568,960.90