Finding the Third Proportional to 168,906 and 361,404

Step by Step Solution

1. Step 1: Write the proportion equation
   168,906 : 361,404 = 361,404 : x
2. Step 2: Convert to fraction form
   168,906/361,404 = 361,404/x
3. Step 3: Cross multiply
   168,906x = 361,404 × 361,404
4. Step 4: Simplify right side
   168,906x = 130,612,851,216
5. Step 5: Solve for x
   x = 130,612,851,216/168,906
6. Step 6: Final answer
   x = 773,287.22