Finding the Third Proportional to 402,740 and 940,610

Step by Step Solution

1. Step 1: Write the proportion equation
   402,740 : 940,610 = 940,610 : x
2. Step 2: Convert to fraction form
   402,740/940,610 = 940,610/x
3. Step 3: Cross multiply
   402,740x = 940,610 × 940,610
4. Step 4: Simplify right side
   402,740x = 884,747,172,100
5. Step 5: Solve for x
   x = 884,747,172,100/402,740
6. Step 6: Final answer
   x = 2,196,819.72