Finding the Third Proportional to 123,241.50 and 161,838

Step by Step Solution

1. Step 1: Write the proportion equation
   123,241.50 : 161,838 = 161,838 : x
2. Step 2: Convert to fraction form
   123,241.50/161,838 = 161,838/x
3. Step 3: Cross multiply
   123,241.50x = 161,838 × 161,838
4. Step 4: Simplify right side
   123,241.50x = 26,191,538,244
5. Step 5: Solve for x
   x = 26,191,538,244/123,241.50
6. Step 6: Final answer
   x = 212,522.07