Finding the Third Proportional to 361,395 and 529,132.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,395 : 529,132.50 = 529,132.50 : x
2. Step 2: Convert to fraction form
   361,395/529,132.50 = 529,132.50/x
3. Step 3: Cross multiply
   361,395x = 529,132.50 × 529,132.50
4. Step 4: Simplify right side
   361,395x = 279,981,202,556.25
5. Step 5: Solve for x
   x = 279,981,202,556.25/361,395
6. Step 6: Final answer
   x = 774,723.51