Finding the Third Proportional to 181,279 and 280,118

Step by Step Solution

1. Step 1: Write the proportion equation
   181,279 : 280,118 = 280,118 : x
2. Step 2: Convert to fraction form
   181,279/280,118 = 280,118/x
3. Step 3: Cross multiply
   181,279x = 280,118 × 280,118
4. Step 4: Simplify right side
   181,279x = 78,466,093,924
5. Step 5: Solve for x
   x = 78,466,093,924/181,279
6. Step 6: Final answer
   x = 432,847.12