Finding the Third Proportional to 274,910 and 425,666

Step by Step Solution

1. Step 1: Write the proportion equation
   274,910 : 425,666 = 425,666 : x
2. Step 2: Convert to fraction form
   274,910/425,666 = 425,666/x
3. Step 3: Cross multiply
   274,910x = 425,666 × 425,666
4. Step 4: Simplify right side
   274,910x = 181,191,543,556
5. Step 5: Solve for x
   x = 181,191,543,556/274,910
6. Step 6: Final answer
   x = 659,094.04