Finding the Third Proportional to 663,426 and 994,096

Step by Step Solution

1. Step 1: Write the proportion equation
   663,426 : 994,096 = 994,096 : x
2. Step 2: Convert to fraction form
   663,426/994,096 = 994,096/x
3. Step 3: Cross multiply
   663,426x = 994,096 × 994,096
4. Step 4: Simplify right side
   663,426x = 988,226,857,216
5. Step 5: Solve for x
   x = 988,226,857,216/663,426
6. Step 6: Final answer
   x = 1,489,581.14