Finding the Third Proportional to 181,768.50 and 388,809

Step by Step Solution

1. Step 1: Write the proportion equation
   181,768.50 : 388,809 = 388,809 : x
2. Step 2: Convert to fraction form
   181,768.50/388,809 = 388,809/x
3. Step 3: Cross multiply
   181,768.50x = 388,809 × 388,809
4. Step 4: Simplify right side
   181,768.50x = 151,172,438,481
5. Step 5: Solve for x
   x = 151,172,438,481/181,768.50
6. Step 6: Final answer
   x = 831,675.67