Finding the Third Proportional to 181,278 and 388,786.50

Step by Step Solution

1. Step 1: Write the proportion equation
   181,278 : 388,786.50 = 388,786.50 : x
2. Step 2: Convert to fraction form
   181,278/388,786.50 = 388,786.50/x
3. Step 3: Cross multiply
   181,278x = 388,786.50 × 388,786.50
4. Step 4: Simplify right side
   181,278x = 151,154,942,582.25
5. Step 5: Solve for x
   x = 151,154,942,582.25/181,278
6. Step 6: Final answer
   x = 833,829.49