Finding the Third Proportional to 181,810 and 388,892

Step by Step Solution

1. Step 1: Write the proportion equation
   181,810 : 388,892 = 388,892 : x
2. Step 2: Convert to fraction form
   181,810/388,892 = 388,892/x
3. Step 3: Cross multiply
   181,810x = 388,892 × 388,892
4. Step 4: Simplify right side
   181,810x = 151,236,987,664
5. Step 5: Solve for x
   x = 151,236,987,664/181,810
6. Step 6: Final answer
   x = 831,840.86