Finding the Third Proportional to 1,217,192 and 2,603,240

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,192 : 2,603,240 = 2,603,240 : x
2. Step 2: Convert to fraction form
   1,217,192/2,603,240 = 2,603,240/x
3. Step 3: Cross multiply
   1,217,192x = 2,603,240 × 2,603,240
4. Step 4: Simplify right side
   1,217,192x = 6,776,858,497,600
5. Step 5: Solve for x
   x = 6,776,858,497,600/1,217,192
6. Step 6: Final answer
   x = 5,567,616.69