Finding the Third Proportional to 109,243.50 and 166,145

Step by Step Solution

1. Step 1: Write the proportion equation
   109,243.50 : 166,145 = 166,145 : x
2. Step 2: Convert to fraction form
   109,243.50/166,145 = 166,145/x
3. Step 3: Cross multiply
   109,243.50x = 166,145 × 166,145
4. Step 4: Simplify right side
   109,243.50x = 27,604,161,025
5. Step 5: Solve for x
   x = 27,604,161,025/109,243.50
6. Step 6: Final answer
   x = 252,684.70