Finding the Third Proportional to 145,250 and 314,626

Step by Step Solution

1. Step 1: Write the proportion equation
   145,250 : 314,626 = 314,626 : x
2. Step 2: Convert to fraction form
   145,250/314,626 = 314,626/x
3. Step 3: Cross multiply
   145,250x = 314,626 × 314,626
4. Step 4: Simplify right side
   145,250x = 98,989,519,876
5. Step 5: Solve for x
   x = 98,989,519,876/145,250
6. Step 6: Final answer
   x = 681,511.32