Finding the Third Proportional to 71,143 and 103,042

Step by Step Solution

1. Step 1: Write the proportion equation
   71,143 : 103,042 = 103,042 : x
2. Step 2: Convert to fraction form
   71,143/103,042 = 103,042/x
3. Step 3: Cross multiply
   71,143x = 103,042 × 103,042
4. Step 4: Simplify right side
   71,143x = 10,617,653,764
5. Step 5: Solve for x
   x = 10,617,653,764/71,143
6. Step 6: Final answer
   x = 149,243.83