Finding the Third Proportional to 1,208,800 and 1,642,648

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208,800 : 1,642,648 = 1,642,648 : x
2. Step 2: Convert to fraction form
   1,208,800/1,642,648 = 1,642,648/x
3. Step 3: Cross multiply
   1,208,800x = 1,642,648 × 1,642,648
4. Step 4: Simplify right side
   1,208,800x = 2,698,292,451,904
5. Step 5: Solve for x
   x = 2,698,292,451,904/1,208,800
6. Step 6: Final answer
   x = 2,232,207.52