Finding the Third Proportional to 326,065.50 and 715,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,065.50 : 715,513.50 = 715,513.50 : x
2. Step 2: Convert to fraction form
   326,065.50/715,513.50 = 715,513.50/x
3. Step 3: Cross multiply
   326,065.50x = 715,513.50 × 715,513.50
4. Step 4: Simplify right side
   326,065.50x = 511,959,568,682.25
5. Step 5: Solve for x
   x = 511,959,568,682.25/326,065.50
6. Step 6: Final answer
   x = 1,570,112.66