Finding the Third Proportional to 150,390 and 334,401.75

Step by Step Solution

1. Step 1: Write the proportion equation
   150,390 : 334,401.75 = 334,401.75 : x
2. Step 2: Convert to fraction form
   150,390/334,401.75 = 334,401.75/x
3. Step 3: Cross multiply
   150,390x = 334,401.75 × 334,401.75
4. Step 4: Simplify right side
   150,390x = 111,824,530,403.06
5. Step 5: Solve for x
   x = 111,824,530,403.06/150,390
6. Step 6: Final answer
   x = 743,563.60