Finding the Third Proportional to 331,608 and 710,533.50

Step by Step Solution

1. Step 1: Write the proportion equation
   331,608 : 710,533.50 = 710,533.50 : x
2. Step 2: Convert to fraction form
   331,608/710,533.50 = 710,533.50/x
3. Step 3: Cross multiply
   331,608x = 710,533.50 × 710,533.50
4. Step 4: Simplify right side
   331,608x = 504,857,854,622.25
5. Step 5: Solve for x
   x = 504,857,854,622.25/331,608
6. Step 6: Final answer
   x = 1,522,453.78