Finding the Third Proportional to 155,666 and 335,860

Step by Step Solution

1. Step 1: Write the proportion equation
   155,666 : 335,860 = 335,860 : x
2. Step 2: Convert to fraction form
   155,666/335,860 = 335,860/x
3. Step 3: Cross multiply
   155,666x = 335,860 × 335,860
4. Step 4: Simplify right side
   155,666x = 112,801,939,600
5. Step 5: Solve for x
   x = 112,801,939,600/155,666
6. Step 6: Final answer
   x = 724,640.83