Finding the Third Proportional to 179,138.50 and 391,025

Step by Step Solution

1. Step 1: Write the proportion equation
   179,138.50 : 391,025 = 391,025 : x
2. Step 2: Convert to fraction form
   179,138.50/391,025 = 391,025/x
3. Step 3: Cross multiply
   179,138.50x = 391,025 × 391,025
4. Step 4: Simplify right side
   179,138.50x = 152,900,550,625
5. Step 5: Solve for x
   x = 152,900,550,625/179,138.50
6. Step 6: Final answer
   x = 853,532.61