Finding the Third Proportional to 172,808 and 282,180

Step by Step Solution

1. Step 1: Write the proportion equation
   172,808 : 282,180 = 282,180 : x
2. Step 2: Convert to fraction form
   172,808/282,180 = 282,180/x
3. Step 3: Cross multiply
   172,808x = 282,180 × 282,180
4. Step 4: Simplify right side
   172,808x = 79,625,552,400
5. Step 5: Solve for x
   x = 79,625,552,400/172,808
6. Step 6: Final answer
   x = 460,774.69