Finding the Third Proportional to 150,972 and 308,498.25

Step by Step Solution

1. Step 1: Write the proportion equation
   150,972 : 308,498.25 = 308,498.25 : x
2. Step 2: Convert to fraction form
   150,972/308,498.25 = 308,498.25/x
3. Step 3: Cross multiply
   150,972x = 308,498.25 × 308,498.25
4. Step 4: Simplify right side
   150,972x = 95,171,170,253.06
5. Step 5: Solve for x
   x = 95,171,170,253.06/150,972
6. Step 6: Final answer
   x = 630,389.54