Finding the Third Proportional to 122,168.25 and 161,017.88

Step by Step Solution

1. Step 1: Write the proportion equation
   122,168.25 : 161,017.88 = 161,017.88 : x
2. Step 2: Convert to fraction form
   122,168.25/161,017.88 = 161,017.88/x
3. Step 3: Cross multiply
   122,168.25x = 161,017.88 × 161,017.88
4. Step 4: Simplify right side
   122,168.25x = 25,926,756,069.52
5. Step 5: Solve for x
   x = 25,926,756,069.52/122,168.25
6. Step 6: Final answer
   x = 212,221.72