Finding the Third Proportional to 326,715 and 703,489.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,715 : 703,489.50 = 703,489.50 : x
2. Step 2: Convert to fraction form
   326,715/703,489.50 = 703,489.50/x
3. Step 3: Cross multiply
   326,715x = 703,489.50 × 703,489.50
4. Step 4: Simplify right side
   326,715x = 494,897,476,610.25
5. Step 5: Solve for x
   x = 494,897,476,610.25/326,715
6. Step 6: Final answer
   x = 1,514,768.15