Finding the Third Proportional to 71,870 and 151,187

Step by Step Solution

1. Step 1: Write the proportion equation
   71,870 : 151,187 = 151,187 : x
2. Step 2: Convert to fraction form
   71,870/151,187 = 151,187/x
3. Step 3: Cross multiply
   71,870x = 151,187 × 151,187
4. Step 4: Simplify right side
   71,870x = 22,857,508,969
5. Step 5: Solve for x
   x = 22,857,508,969/71,870
6. Step 6: Final answer
   x = 318,039.64