Finding the Third Proportional to 169,774 and 258,349.50

Step by Step Solution

1. Step 1: Write the proportion equation
   169,774 : 258,349.50 = 258,349.50 : x
2. Step 2: Convert to fraction form
   169,774/258,349.50 = 258,349.50/x
3. Step 3: Cross multiply
   169,774x = 258,349.50 × 258,349.50
4. Step 4: Simplify right side
   169,774x = 66,744,464,150.25
5. Step 5: Solve for x
   x = 66,744,464,150.25/169,774
6. Step 6: Final answer
   x = 393,137.14