Finding the Third Proportional to 2,658,386 and 5,848,420

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658,386 : 5,848,420 = 5,848,420 : x
2. Step 2: Convert to fraction form
   2,658,386/5,848,420 = 5,848,420/x
3. Step 3: Cross multiply
   2,658,386x = 5,848,420 × 5,848,420
4. Step 4: Simplify right side
   2,658,386x = 34,204,016,496,400
5. Step 5: Solve for x
   x = 34,204,016,496,400/2,658,386
6. Step 6: Final answer
   x = 12,866,459.76