Finding the Third Proportional to 154,404 and 325,410

Step by Step Solution

1. Step 1: Write the proportion equation
   154,404 : 325,410 = 325,410 : x
2. Step 2: Convert to fraction form
   154,404/325,410 = 325,410/x
3. Step 3: Cross multiply
   154,404x = 325,410 × 325,410
4. Step 4: Simplify right side
   154,404x = 105,891,668,100
5. Step 5: Solve for x
   x = 105,891,668,100/154,404
6. Step 6: Final answer
   x = 685,809.10