Finding the Third Proportional to 166,492 and 270,499

Step by Step Solution

1. Step 1: Write the proportion equation
   166,492 : 270,499 = 270,499 : x
2. Step 2: Convert to fraction form
   166,492/270,499 = 270,499/x
3. Step 3: Cross multiply
   166,492x = 270,499 × 270,499
4. Step 4: Simplify right side
   166,492x = 73,169,709,001
5. Step 5: Solve for x
   x = 73,169,709,001/166,492
6. Step 6: Final answer
   x = 439,478.83