Finding the Third Proportional to 12,464,404 and 18,646,780

Step by Step Solution

1. Step 1: Write the proportion equation
   12,464,404 : 18,646,780 = 18,646,780 : x
2. Step 2: Convert to fraction form
   12,464,404/18,646,780 = 18,646,780/x
3. Step 3: Cross multiply
   12,464,404x = 18,646,780 × 18,646,780
4. Step 4: Simplify right side
   12,464,404x = 347,702,404,368,400
5. Step 5: Solve for x
   x = 347,702,404,368,400/12,464,404
6. Step 6: Final answer
   x = 27,895,630.18