Finding the Third Proportional to 425,250 and 685,182

Step by Step Solution

1. Step 1: Write the proportion equation
   425,250 : 685,182 = 685,182 : x
2. Step 2: Convert to fraction form
   425,250/685,182 = 685,182/x
3. Step 3: Cross multiply
   425,250x = 685,182 × 685,182
4. Step 4: Simplify right side
   425,250x = 469,474,373,124
5. Step 5: Solve for x
   x = 469,474,373,124/425,250
6. Step 6: Final answer
   x = 1,103,996.17