Finding the Third Proportional to 169,773 and 258,350.50

Step by Step Solution

1. Step 1: Write the proportion equation
   169,773 : 258,350.50 = 258,350.50 : x
2. Step 2: Convert to fraction form
   169,773/258,350.50 = 258,350.50/x
3. Step 3: Cross multiply
   169,773x = 258,350.50 × 258,350.50
4. Step 4: Simplify right side
   169,773x = 66,744,980,850.25
5. Step 5: Solve for x
   x = 66,744,980,850.25/169,773
6. Step 6: Final answer
   x = 393,142.50