Finding the Third Proportional to 1,939,747 and 4,215,257

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,747 : 4,215,257 = 4,215,257 : x
2. Step 2: Convert to fraction form
   1,939,747/4,215,257 = 4,215,257/x
3. Step 3: Cross multiply
   1,939,747x = 4,215,257 × 4,215,257
4. Step 4: Simplify right side
   1,939,747x = 17,768,391,576,049
5. Step 5: Solve for x
   x = 17,768,391,576,049/1,939,747
6. Step 6: Final answer
   x = 9,160,159.33