Finding the Third Proportional to 642,256 and 1,411,628

Step by Step Solution

1. Step 1: Write the proportion equation
   642,256 : 1,411,628 = 1,411,628 : x
2. Step 2: Convert to fraction form
   642,256/1,411,628 = 1,411,628/x
3. Step 3: Cross multiply
   642,256x = 1,411,628 × 1,411,628
4. Step 4: Simplify right side
   642,256x = 1,992,693,610,384
5. Step 5: Solve for x
   x = 1,992,693,610,384/642,256
6. Step 6: Final answer
   x = 3,102,646.94