Finding the Third Proportional to 331,605.56 and 710,487.89

Step by Step Solution

1. Step 1: Write the proportion equation
   331,605.56 : 710,487.89 = 710,487.89 : x
2. Step 2: Convert to fraction form
   331,605.56/710,487.89 = 710,487.89/x
3. Step 3: Cross multiply
   331,605.56x = 710,487.89 × 710,487.89
4. Step 4: Simplify right side
   331,605.56x = 504,793,042,724.76
5. Step 5: Solve for x
   x = 504,793,042,724.76/331,605.56
6. Step 6: Final answer
   x = 1,522,269.53