Finding the Third Proportional to 1,307,788 and 1,999,698

Step by Step Solution

1. Step 1: Write the proportion equation
   1,307,788 : 1,999,698 = 1,999,698 : x
2. Step 2: Convert to fraction form
   1,307,788/1,999,698 = 1,999,698/x
3. Step 3: Cross multiply
   1,307,788x = 1,999,698 × 1,999,698
4. Step 4: Simplify right side
   1,307,788x = 3,998,792,091,204
5. Step 5: Solve for x
   x = 3,998,792,091,204/1,307,788
6. Step 6: Final answer
   x = 3,057,676.08