Finding the Third Proportional to 361,786.50 and 787,860

Step by Step Solution

1. Step 1: Write the proportion equation
   361,786.50 : 787,860 = 787,860 : x
2. Step 2: Convert to fraction form
   361,786.50/787,860 = 787,860/x
3. Step 3: Cross multiply
   361,786.50x = 787,860 × 787,860
4. Step 4: Simplify right side
   361,786.50x = 620,723,379,600
5. Step 5: Solve for x
   x = 620,723,379,600/361,786.50
6. Step 6: Final answer
   x = 1,715,717.36