Finding the Third Proportional to 2,870,550 and 3,900,177

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870,550 : 3,900,177 = 3,900,177 : x
2. Step 2: Convert to fraction form
   2,870,550/3,900,177 = 3,900,177/x
3. Step 3: Cross multiply
   2,870,550x = 3,900,177 × 3,900,177
4. Step 4: Simplify right side
   2,870,550x = 15,211,380,631,329
5. Step 5: Solve for x
   x = 15,211,380,631,329/2,870,550
6. Step 6: Final answer
   x = 5,299,117.11