Finding the Third Proportional to 1,328,400 and 2,751,320

Step by Step Solution

1. Step 1: Write the proportion equation
   1,328,400 : 2,751,320 = 2,751,320 : x
2. Step 2: Convert to fraction form
   1,328,400/2,751,320 = 2,751,320/x
3. Step 3: Cross multiply
   1,328,400x = 2,751,320 × 2,751,320
4. Step 4: Simplify right side
   1,328,400x = 7,569,761,742,400
5. Step 5: Solve for x
   x = 7,569,761,742,400/1,328,400
6. Step 6: Final answer
   x = 5,698,405.41