Finding the Third Proportional to 72,986 and 155,388

Step by Step Solution

1. Step 1: Write the proportion equation
   72,986 : 155,388 = 155,388 : x
2. Step 2: Convert to fraction form
   72,986/155,388 = 155,388/x
3. Step 3: Cross multiply
   72,986x = 155,388 × 155,388
4. Step 4: Simplify right side
   72,986x = 24,145,430,544
5. Step 5: Solve for x
   x = 24,145,430,544/72,986
6. Step 6: Final answer
   x = 330,822.77