Finding the Third Proportional to 169,338 and 262,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   169,338 : 262,345.50 = 262,345.50 : x
2. Step 2: Convert to fraction form
   169,338/262,345.50 = 262,345.50/x
3. Step 3: Cross multiply
   169,338x = 262,345.50 × 262,345.50
4. Step 4: Simplify right side
   169,338x = 68,825,161,370.25
5. Step 5: Solve for x
   x = 68,825,161,370.25/169,338
6. Step 6: Final answer
   x = 406,436.60