Finding the Third Proportional to 3,085,142 and 6,320,620

Step by Step Solution

1. Step 1: Write the proportion equation
   3,085,142 : 6,320,620 = 6,320,620 : x
2. Step 2: Convert to fraction form
   3,085,142/6,320,620 = 6,320,620/x
3. Step 3: Cross multiply
   3,085,142x = 6,320,620 × 6,320,620
4. Step 4: Simplify right side
   3,085,142x = 39,950,237,184,400
5. Step 5: Solve for x
   x = 39,950,237,184,400/3,085,142
6. Step 6: Final answer
   x = 12,949,237.73