Finding the Third Proportional to 2,196,728 and 3,287,137

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196,728 : 3,287,137 = 3,287,137 : x
2. Step 2: Convert to fraction form
   2,196,728/3,287,137 = 3,287,137/x
3. Step 3: Cross multiply
   2,196,728x = 3,287,137 × 3,287,137
4. Step 4: Simplify right side
   2,196,728x = 10,805,269,656,769
5. Step 5: Solve for x
   x = 10,805,269,656,769/2,196,728
6. Step 6: Final answer
   x = 4,918,801.81