Finding the Third Proportional to 1,103,280 and 1,687,008

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103,280 : 1,687,008 = 1,687,008 : x
2. Step 2: Convert to fraction form
   1,103,280/1,687,008 = 1,687,008/x
3. Step 3: Cross multiply
   1,103,280x = 1,687,008 × 1,687,008
4. Step 4: Simplify right side
   1,103,280x = 2,845,995,992,064
5. Step 5: Solve for x
   x = 2,845,995,992,064/1,103,280
6. Step 6: Final answer
   x = 2,579,577.25