Finding the Third Proportional to 179,144 and 391,036

Step by Step Solution

1. Step 1: Write the proportion equation
   179,144 : 391,036 = 391,036 : x
2. Step 2: Convert to fraction form
   179,144/391,036 = 391,036/x
3. Step 3: Cross multiply
   179,144x = 391,036 × 391,036
4. Step 4: Simplify right side
   179,144x = 152,909,153,296
5. Step 5: Solve for x
   x = 152,909,153,296/179,144
6. Step 6: Final answer
   x = 853,554.42