Finding the Third Proportional to 179,143 and 391,034

Step by Step Solution

1. Step 1: Write the proportion equation
   179,143 : 391,034 = 391,034 : x
2. Step 2: Convert to fraction form
   179,143/391,034 = 391,034/x
3. Step 3: Cross multiply
   179,143x = 391,034 × 391,034
4. Step 4: Simplify right side
   179,143x = 152,907,589,156
5. Step 5: Solve for x
   x = 152,907,589,156/179,143
6. Step 6: Final answer
   x = 853,550.45