Finding the Third Proportional to 329,042.25 and 718,308

Step by Step Solution

1. Step 1: Write the proportion equation
   329,042.25 : 718,308 = 718,308 : x
2. Step 2: Convert to fraction form
   329,042.25/718,308 = 718,308/x
3. Step 3: Cross multiply
   329,042.25x = 718,308 × 718,308
4. Step 4: Simplify right side
   329,042.25x = 515,966,382,864
5. Step 5: Solve for x
   x = 515,966,382,864/329,042.25
6. Step 6: Final answer
   x = 1,568,085.51