Finding the Third Proportional to 71,019.50 and 155,403

Step by Step Solution

1. Step 1: Write the proportion equation
   71,019.50 : 155,403 = 155,403 : x
2. Step 2: Convert to fraction form
   71,019.50/155,403 = 155,403/x
3. Step 3: Cross multiply
   71,019.50x = 155,403 × 155,403
4. Step 4: Simplify right side
   71,019.50x = 24,150,092,409
5. Step 5: Solve for x
   x = 24,150,092,409/71,019.50
6. Step 6: Final answer
   x = 340,048.75