Finding the Third Proportional to 168,906 and 267,443

Step by Step Solution

1. Step 1: Write the proportion equation
   168,906 : 267,443 = 267,443 : x
2. Step 2: Convert to fraction form
   168,906/267,443 = 267,443/x
3. Step 3: Cross multiply
   168,906x = 267,443 × 267,443
4. Step 4: Simplify right side
   168,906x = 71,525,758,249
5. Step 5: Solve for x
   x = 71,525,758,249/168,906
6. Step 6: Final answer
   x = 423,464.88