Finding the Third Proportional to 328,326.75 and 718,930.69

Step by Step Solution

1. Step 1: Write the proportion equation
   328,326.75 : 718,930.69 = 718,930.69 : x
2. Step 2: Convert to fraction form
   328,326.75/718,930.69 = 718,930.69/x
3. Step 3: Cross multiply
   328,326.75x = 718,930.69 × 718,930.69
4. Step 4: Simplify right side
   328,326.75x = 516,861,333,429.22
5. Step 5: Solve for x
   x = 516,861,333,429.22/328,326.75
6. Step 6: Final answer
   x = 1,574,228.52