Finding the Third Proportional to 2,700,820 and 4,180,620

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700,820 : 4,180,620 = 4,180,620 : x
2. Step 2: Convert to fraction form
   2,700,820/4,180,620 = 4,180,620/x
3. Step 3: Cross multiply
   2,700,820x = 4,180,620 × 4,180,620
4. Step 4: Simplify right side
   2,700,820x = 17,477,583,584,400
5. Step 5: Solve for x
   x = 17,477,583,584,400/2,700,820
6. Step 6: Final answer
   x = 6,471,213.77