Finding the Third Proportional to 30,175.50 and 71,145

Step by Step Solution

1. Step 1: Write the proportion equation
   30,175.50 : 71,145 = 71,145 : x
2. Step 2: Convert to fraction form
   30,175.50/71,145 = 71,145/x
3. Step 3: Cross multiply
   30,175.50x = 71,145 × 71,145
4. Step 4: Simplify right side
   30,175.50x = 5,061,611,025
5. Step 5: Solve for x
   x = 5,061,611,025/30,175.50
6. Step 6: Final answer
   x = 167,739.09