Finding the Third Proportional to 225,531 and 490,407.75

Step by Step Solution

1. Step 1: Write the proportion equation
   225,531 : 490,407.75 = 490,407.75 : x
2. Step 2: Convert to fraction form
   225,531/490,407.75 = 490,407.75/x
3. Step 3: Cross multiply
   225,531x = 490,407.75 × 490,407.75
4. Step 4: Simplify right side
   225,531x = 240,499,761,260.06
5. Step 5: Solve for x
   x = 240,499,761,260.06/225,531
6. Step 6: Final answer
   x = 1,066,371.19