Finding the Third Proportional to 123,036 and 161,556

Step by Step Solution

1. Step 1: Write the proportion equation
   123,036 : 161,556 = 161,556 : x
2. Step 2: Convert to fraction form
   123,036/161,556 = 161,556/x
3. Step 3: Cross multiply
   123,036x = 161,556 × 161,556
4. Step 4: Simplify right side
   123,036x = 26,100,341,136
5. Step 5: Solve for x
   x = 26,100,341,136/123,036
6. Step 6: Final answer
   x = 212,135.81