Finding the Third Proportional to 179,631 and 391,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   179,631 : 391,162.50 = 391,162.50 : x
2. Step 2: Convert to fraction form
   179,631/391,162.50 = 391,162.50/x
3. Step 3: Cross multiply
   179,631x = 391,162.50 × 391,162.50
4. Step 4: Simplify right side
   179,631x = 153,008,101,406.25
5. Step 5: Solve for x
   x = 153,008,101,406.25/179,631
6. Step 6: Final answer
   x = 851,791.18