Finding the Third Proportional to 71,391 and 155,494

Step by Step Solution

1. Step 1: Write the proportion equation
   71,391 : 155,494 = 155,494 : x
2. Step 2: Convert to fraction form
   71,391/155,494 = 155,494/x
3. Step 3: Cross multiply
   71,391x = 155,494 × 155,494
4. Step 4: Simplify right side
   71,391x = 24,178,384,036
5. Step 5: Solve for x
   x = 24,178,384,036/71,391
6. Step 6: Final answer
   x = 338,675.52