Finding the Third Proportional to 326,916 and 705,469.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,916 : 705,469.50 = 705,469.50 : x
2. Step 2: Convert to fraction form
   326,916/705,469.50 = 705,469.50/x
3. Step 3: Cross multiply
   326,916x = 705,469.50 × 705,469.50
4. Step 4: Simplify right side
   326,916x = 497,687,215,430.25
5. Step 5: Solve for x
   x = 497,687,215,430.25/326,916
6. Step 6: Final answer
   x = 1,522,370.32