Finding the Third Proportional to 326,718 and 703,495.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,718 : 703,495.50 = 703,495.50 : x
2. Step 2: Convert to fraction form
   326,718/703,495.50 = 703,495.50/x
3. Step 3: Cross multiply
   326,718x = 703,495.50 × 703,495.50
4. Step 4: Simplify right side
   326,718x = 494,905,918,520.25
5. Step 5: Solve for x
   x = 494,905,918,520.25/326,718
6. Step 6: Final answer
   x = 1,514,780.08