Finding the Third Proportional to 663,408 and 1,430,496

Step by Step Solution

1. Step 1: Write the proportion equation
   663,408 : 1,430,496 = 1,430,496 : x
2. Step 2: Convert to fraction form
   663,408/1,430,496 = 1,430,496/x
3. Step 3: Cross multiply
   663,408x = 1,430,496 × 1,430,496
4. Step 4: Simplify right side
   663,408x = 2,046,318,806,016
5. Step 5: Solve for x
   x = 2,046,318,806,016/663,408
6. Step 6: Final answer
   x = 3,084,555.52