Finding the Third Proportional to 225,660 and 490,164

Step by Step Solution

1. Step 1: Write the proportion equation
   225,660 : 490,164 = 490,164 : x
2. Step 2: Convert to fraction form
   225,660/490,164 = 490,164/x
3. Step 3: Cross multiply
   225,660x = 490,164 × 490,164
4. Step 4: Simplify right side
   225,660x = 240,260,746,896
5. Step 5: Solve for x
   x = 240,260,746,896/225,660
6. Step 6: Final answer
   x = 1,064,702.41