Finding the Third Proportional to 1,928,655 and 4,200,173

Step by Step Solution

1. Step 1: Write the proportion equation
   1,928,655 : 4,200,173 = 4,200,173 : x
2. Step 2: Convert to fraction form
   1,928,655/4,200,173 = 4,200,173/x
3. Step 3: Cross multiply
   1,928,655x = 4,200,173 × 4,200,173
4. Step 4: Simplify right side
   1,928,655x = 17,641,453,229,929
5. Step 5: Solve for x
   x = 17,641,453,229,929/1,928,655
6. Step 6: Final answer
   x = 9,147,023.82