Finding the Third Proportional to 153,390 and 333,768

Step by Step Solution

1. Step 1: Write the proportion equation
   153,390 : 333,768 = 333,768 : x
2. Step 2: Convert to fraction form
   153,390/333,768 = 333,768/x
3. Step 3: Cross multiply
   153,390x = 333,768 × 333,768
4. Step 4: Simplify right side
   153,390x = 111,401,077,824
5. Step 5: Solve for x
   x = 111,401,077,824/153,390
6. Step 6: Final answer
   x = 726,260.37