Finding the Third Proportional to 339,352.50 and 711,753

Step by Step Solution

1. Step 1: Write the proportion equation
   339,352.50 : 711,753 = 711,753 : x
2. Step 2: Convert to fraction form
   339,352.50/711,753 = 711,753/x
3. Step 3: Cross multiply
   339,352.50x = 711,753 × 711,753
4. Step 4: Simplify right side
   339,352.50x = 506,592,333,009
5. Step 5: Solve for x
   x = 506,592,333,009/339,352.50
6. Step 6: Final answer
   x = 1,492,820.39