Finding the Third Proportional to 333,985.50 and 739,993.50

Step by Step Solution

1. Step 1: Write the proportion equation
   333,985.50 : 739,993.50 = 739,993.50 : x
2. Step 2: Convert to fraction form
   333,985.50/739,993.50 = 739,993.50/x
3. Step 3: Cross multiply
   333,985.50x = 739,993.50 × 739,993.50
4. Step 4: Simplify right side
   333,985.50x = 547,590,380,042.25
5. Step 5: Solve for x
   x = 547,590,380,042.25/333,985.50
6. Step 6: Final answer
   x = 1,639,563.33