Finding the Third Proportional to 361,854 and 531,940.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,854 : 531,940.50 = 531,940.50 : x
2. Step 2: Convert to fraction form
   361,854/531,940.50 = 531,940.50/x
3. Step 3: Cross multiply
   361,854x = 531,940.50 × 531,940.50
4. Step 4: Simplify right side
   361,854x = 282,960,695,540.25
5. Step 5: Solve for x
   x = 282,960,695,540.25/361,854
6. Step 6: Final answer
   x = 781,974.76