Finding the Third Proportional to 71,142 and 155,404

Step by Step Solution

1. Step 1: Write the proportion equation
   71,142 : 155,404 = 155,404 : x
2. Step 2: Convert to fraction form
   71,142/155,404 = 155,404/x
3. Step 3: Cross multiply
   71,142x = 155,404 × 155,404
4. Step 4: Simplify right side
   71,142x = 24,150,403,216
5. Step 5: Solve for x
   x = 24,150,403,216/71,142
6. Step 6: Final answer
   x = 339,467.59