Finding the Third Proportional to 4,171,035 and 9,139,290

Step by Step Solution

1. Step 1: Write the proportion equation
   4,171,035 : 9,139,290 = 9,139,290 : x
2. Step 2: Convert to fraction form
   4,171,035/9,139,290 = 9,139,290/x
3. Step 3: Cross multiply
   4,171,035x = 9,139,290 × 9,139,290
4. Step 4: Simplify right side
   4,171,035x = 83,526,621,704,100
5. Step 5: Solve for x
   x = 83,526,621,704,100/4,171,035
6. Step 6: Final answer
   x = 20,025,394.59