Finding the Third Proportional to 642,268 and 1,487,302

Step by Step Solution

1. Step 1: Write the proportion equation
   642,268 : 1,487,302 = 1,487,302 : x
2. Step 2: Convert to fraction form
   642,268/1,487,302 = 1,487,302/x
3. Step 3: Cross multiply
   642,268x = 1,487,302 × 1,487,302
4. Step 4: Simplify right side
   642,268x = 2,212,067,239,204
5. Step 5: Solve for x
   x = 2,212,067,239,204/642,268
6. Step 6: Final answer
   x = 3,444,149.86