Finding the Third Proportional to 1,214,808 and 2,658,408

Step by Step Solution

1. Step 1: Write the proportion equation
   1,214,808 : 2,658,408 = 2,658,408 : x
2. Step 2: Convert to fraction form
   1,214,808/2,658,408 = 2,658,408/x
3. Step 3: Cross multiply
   1,214,808x = 2,658,408 × 2,658,408
4. Step 4: Simplify right side
   1,214,808x = 7,067,133,094,464
5. Step 5: Solve for x
   x = 7,067,133,094,464/1,214,808
6. Step 6: Final answer
   x = 5,817,489.76