Finding the Third Proportional to 155,886 and 335,809.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,886 : 335,809.50 = 335,809.50 : x
2. Step 2: Convert to fraction form
   155,886/335,809.50 = 335,809.50/x
3. Step 3: Cross multiply
   155,886x = 335,809.50 × 335,809.50
4. Step 4: Simplify right side
   155,886x = 112,768,020,290.25
5. Step 5: Solve for x
   x = 112,768,020,290.25/155,886
6. Step 6: Final answer
   x = 723,400.56