Finding the Third Proportional to 191,529 and 388,530

Step by Step Solution

1. Step 1: Write the proportion equation
   191,529 : 388,530 = 388,530 : x
2. Step 2: Convert to fraction form
   191,529/388,530 = 388,530/x
3. Step 3: Cross multiply
   191,529x = 388,530 × 388,530
4. Step 4: Simplify right side
   191,529x = 150,955,560,900
5. Step 5: Solve for x
   x = 150,955,560,900/191,529
6. Step 6: Final answer
   x = 788,160.34