Finding the Third Proportional to 1,028,908 and 2,215,848

Step by Step Solution

1. Step 1: Write the proportion equation
   1,028,908 : 2,215,848 = 2,215,848 : x
2. Step 2: Convert to fraction form
   1,028,908/2,215,848 = 2,215,848/x
3. Step 3: Cross multiply
   1,028,908x = 2,215,848 × 2,215,848
4. Step 4: Simplify right side
   1,028,908x = 4,909,982,359,104
5. Step 5: Solve for x
   x = 4,909,982,359,104/1,028,908
6. Step 6: Final answer
   x = 4,772,032.45