Finding the Third Proportional to 225,654 and 490,152

Step by Step Solution

1. Step 1: Write the proportion equation
   225,654 : 490,152 = 490,152 : x
2. Step 2: Convert to fraction form
   225,654/490,152 = 490,152/x
3. Step 3: Cross multiply
   225,654x = 490,152 × 490,152
4. Step 4: Simplify right side
   225,654x = 240,248,983,104
5. Step 5: Solve for x
   x = 240,248,983,104/225,654
6. Step 6: Final answer
   x = 1,064,678.59