Finding the Third Proportional to 151,266 and 318,012

Step by Step Solution

1. Step 1: Write the proportion equation
   151,266 : 318,012 = 318,012 : x
2. Step 2: Convert to fraction form
   151,266/318,012 = 318,012/x
3. Step 3: Cross multiply
   151,266x = 318,012 × 318,012
4. Step 4: Simplify right side
   151,266x = 101,131,632,144
5. Step 5: Solve for x
   x = 101,131,632,144/151,266
6. Step 6: Final answer
   x = 668,568.17