Finding the Third Proportional to 1,103,644 and 1,687,536

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103,644 : 1,687,536 = 1,687,536 : x
2. Step 2: Convert to fraction form
   1,103,644/1,687,536 = 1,687,536/x
3. Step 3: Cross multiply
   1,103,644x = 1,687,536 × 1,687,536
4. Step 4: Simplify right side
   1,103,644x = 2,847,777,751,296
5. Step 5: Solve for x
   x = 2,847,777,751,296/1,103,644
6. Step 6: Final answer
   x = 2,580,340.90