Finding the Third Proportional to 181,072.50 and 389,757

Step by Step Solution

1. Step 1: Write the proportion equation
   181,072.50 : 389,757 = 389,757 : x
2. Step 2: Convert to fraction form
   181,072.50/389,757 = 389,757/x
3. Step 3: Cross multiply
   181,072.50x = 389,757 × 389,757
4. Step 4: Simplify right side
   181,072.50x = 151,910,519,049
5. Step 5: Solve for x
   x = 151,910,519,049/181,072.50
6. Step 6: Final answer
   x = 838,948.59