Finding the Third Proportional to 1,217,460 and 2,603,760

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,460 : 2,603,760 = 2,603,760 : x
2. Step 2: Convert to fraction form
   1,217,460/2,603,760 = 2,603,760/x
3. Step 3: Cross multiply
   1,217,460x = 2,603,760 × 2,603,760
4. Step 4: Simplify right side
   1,217,460x = 6,779,566,137,600
5. Step 5: Solve for x
   x = 6,779,566,137,600/1,217,460
6. Step 6: Final answer
   x = 5,568,615.10