Finding the Third Proportional to 641,614.50 and 993,363

Step by Step Solution

1. Step 1: Write the proportion equation
   641,614.50 : 993,363 = 993,363 : x
2. Step 2: Convert to fraction form
   641,614.50/993,363 = 993,363/x
3. Step 3: Cross multiply
   641,614.50x = 993,363 × 993,363
4. Step 4: Simplify right side
   641,614.50x = 986,770,049,769
5. Step 5: Solve for x
   x = 986,770,049,769/641,614.50
6. Step 6: Final answer
   x = 1,537,948.49