Finding the Third Proportional to 406,956 and 622,530

Step by Step Solution

1. Step 1: Write the proportion equation
   406,956 : 622,530 = 622,530 : x
2. Step 2: Convert to fraction form
   406,956/622,530 = 622,530/x
3. Step 3: Cross multiply
   406,956x = 622,530 × 622,530
4. Step 4: Simplify right side
   406,956x = 387,543,600,900
5. Step 5: Solve for x
   x = 387,543,600,900/406,956
6. Step 6: Final answer
   x = 952,298.53