Finding the Third Proportional to 150,770.50 and 317,039

Step by Step Solution

1. Step 1: Write the proportion equation
   150,770.50 : 317,039 = 317,039 : x
2. Step 2: Convert to fraction form
   150,770.50/317,039 = 317,039/x
3. Step 3: Cross multiply
   150,770.50x = 317,039 × 317,039
4. Step 4: Simplify right side
   150,770.50x = 100,513,727,521
5. Step 5: Solve for x
   x = 100,513,727,521/150,770.50
6. Step 6: Final answer
   x = 666,667.07