Finding the Third Proportional to 1,028,438 and 2,214,917

Step by Step Solution

1. Step 1: Write the proportion equation
   1,028,438 : 2,214,917 = 2,214,917 : x
2. Step 2: Convert to fraction form
   1,028,438/2,214,917 = 2,214,917/x
3. Step 3: Cross multiply
   1,028,438x = 2,214,917 × 2,214,917
4. Step 4: Simplify right side
   1,028,438x = 4,905,857,316,889
5. Step 5: Solve for x
   x = 4,905,857,316,889/1,028,438
6. Step 6: Final answer
   x = 4,770,202.30