Finding the Third Proportional to 1,939,652 and 4,215,049

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,652 : 4,215,049 = 4,215,049 : x
2. Step 2: Convert to fraction form
   1,939,652/4,215,049 = 4,215,049/x
3. Step 3: Cross multiply
   1,939,652x = 4,215,049 × 4,215,049
4. Step 4: Simplify right side
   1,939,652x = 17,766,638,072,401
5. Step 5: Solve for x
   x = 17,766,638,072,401/1,939,652
6. Step 6: Final answer
   x = 9,159,703.94