Finding the Third Proportional to 678,962 and 1,488,496

Step by Step Solution

1. Step 1: Write the proportion equation
   678,962 : 1,488,496 = 1,488,496 : x
2. Step 2: Convert to fraction form
   678,962/1,488,496 = 1,488,496/x
3. Step 3: Cross multiply
   678,962x = 1,488,496 × 1,488,496
4. Step 4: Simplify right side
   678,962x = 2,215,620,342,016
5. Step 5: Solve for x
   x = 2,215,620,342,016/678,962
6. Step 6: Final answer
   x = 3,263,246.46