Finding the Third Proportional to 1,584,860 and 3,428,028

Step by Step Solution

1. Step 1: Write the proportion equation
   1,584,860 : 3,428,028 = 3,428,028 : x
2. Step 2: Convert to fraction form
   1,584,860/3,428,028 = 3,428,028/x
3. Step 3: Cross multiply
   1,584,860x = 3,428,028 × 3,428,028
4. Step 4: Simplify right side
   1,584,860x = 11,751,375,968,784
5. Step 5: Solve for x
   x = 11,751,375,968,784/1,584,860
6. Step 6: Final answer
   x = 7,414,772.26