Finding the Third Proportional to 647,235 and 1,418,886

Step by Step Solution

1. Step 1: Write the proportion equation
   647,235 : 1,418,886 = 1,418,886 : x
2. Step 2: Convert to fraction form
   647,235/1,418,886 = 1,418,886/x
3. Step 3: Cross multiply
   647,235x = 1,418,886 × 1,418,886
4. Step 4: Simplify right side
   647,235x = 2,013,237,480,996
5. Step 5: Solve for x
   x = 2,013,237,480,996/647,235
6. Step 6: Final answer
   x = 3,110,520.11