Finding the Third Proportional to 4,171,034 and 9,139,288

Step by Step Solution

1. Step 1: Write the proportion equation
   4,171,034 : 9,139,288 = 9,139,288 : x
2. Step 2: Convert to fraction form
   4,171,034/9,139,288 = 9,139,288/x
3. Step 3: Cross multiply
   4,171,034x = 9,139,288 × 9,139,288
4. Step 4: Simplify right side
   4,171,034x = 83,526,585,146,944
5. Step 5: Solve for x
   x = 83,526,585,146,944/4,171,034
6. Step 6: Final answer
   x = 20,025,390.62