Finding the Third Proportional to 173,673 and 259,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   173,673 : 259,861.50 = 259,861.50 : x
2. Step 2: Convert to fraction form
   173,673/259,861.50 = 259,861.50/x
3. Step 3: Cross multiply
   173,673x = 259,861.50 × 259,861.50
4. Step 4: Simplify right side
   173,673x = 67,527,999,182.25
5. Step 5: Solve for x
   x = 67,527,999,182.25/173,673
6. Step 6: Final answer
   x = 388,822.67