Finding the Third Proportional to 1,449,116 and 3,178,168

Step by Step Solution

1. Step 1: Write the proportion equation
   1,449,116 : 3,178,168 = 3,178,168 : x
2. Step 2: Convert to fraction form
   1,449,116/3,178,168 = 3,178,168/x
3. Step 3: Cross multiply
   1,449,116x = 3,178,168 × 3,178,168
4. Step 4: Simplify right side
   1,449,116x = 10,100,751,836,224
5. Step 5: Solve for x
   x = 10,100,751,836,224/1,449,116
6. Step 6: Final answer
   x = 6,970,285.22