Finding the Third Proportional to 71,175.75 and 109,142.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,175.75 : 109,142.25 = 109,142.25 : x
2. Step 2: Convert to fraction form
   71,175.75/109,142.25 = 109,142.25/x
3. Step 3: Cross multiply
   71,175.75x = 109,142.25 × 109,142.25
4. Step 4: Simplify right side
   71,175.75x = 11,912,030,735.06
5. Step 5: Solve for x
   x = 11,912,030,735.06/71,175.75
6. Step 6: Final answer
   x = 167,360.80