Finding the Third Proportional to 418,458 and 915,162

Step by Step Solution

1. Step 1: Write the proportion equation
   418,458 : 915,162 = 915,162 : x
2. Step 2: Convert to fraction form
   418,458/915,162 = 915,162/x
3. Step 3: Cross multiply
   418,458x = 915,162 × 915,162
4. Step 4: Simplify right side
   418,458x = 837,521,486,244
5. Step 5: Solve for x
   x = 837,521,486,244/418,458
6. Step 6: Final answer
   x = 2,001,446.95