Finding the Third Proportional to 1,102,212 and 1,686,042

Step by Step Solution

1. Step 1: Write the proportion equation
   1,102,212 : 1,686,042 = 1,686,042 : x
2. Step 2: Convert to fraction form
   1,102,212/1,686,042 = 1,686,042/x
3. Step 3: Cross multiply
   1,102,212x = 1,686,042 × 1,686,042
4. Step 4: Simplify right side
   1,102,212x = 2,842,737,625,764
5. Step 5: Solve for x
   x = 2,842,737,625,764/1,102,212
6. Step 6: Final answer
   x = 2,579,120.56