Finding the Third Proportional to 1,428,360 and 2,213,496

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,360 : 2,213,496 = 2,213,496 : x
2. Step 2: Convert to fraction form
   1,428,360/2,213,496 = 2,213,496/x
3. Step 3: Cross multiply
   1,428,360x = 2,213,496 × 2,213,496
4. Step 4: Simplify right side
   1,428,360x = 4,899,564,542,016
5. Step 5: Solve for x
   x = 4,899,564,542,016/1,428,360
6. Step 6: Final answer
   x = 3,430,202.85