Finding the Third Proportional to 181,870.50 and 428,718

Step by Step Solution

1. Step 1: Write the proportion equation
   181,870.50 : 428,718 = 428,718 : x
2. Step 2: Convert to fraction form
   181,870.50/428,718 = 428,718/x
3. Step 3: Cross multiply
   181,870.50x = 428,718 × 428,718
4. Step 4: Simplify right side
   181,870.50x = 183,799,123,524
5. Step 5: Solve for x
   x = 183,799,123,524/181,870.50
6. Step 6: Final answer
   x = 1,010,604.38