Finding the Third Proportional to 123,390 and 167,208

Step by Step Solution

1. Step 1: Write the proportion equation
   123,390 : 167,208 = 167,208 : x
2. Step 2: Convert to fraction form
   123,390/167,208 = 167,208/x
3. Step 3: Cross multiply
   123,390x = 167,208 × 167,208
4. Step 4: Simplify right side
   123,390x = 27,958,515,264
5. Step 5: Solve for x
   x = 27,958,515,264/123,390
6. Step 6: Final answer
   x = 226,586.56