Finding the Third Proportional to 2,143,634 and 3,317,709

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,634 : 3,317,709 = 3,317,709 : x
2. Step 2: Convert to fraction form
   2,143,634/3,317,709 = 3,317,709/x
3. Step 3: Cross multiply
   2,143,634x = 3,317,709 × 3,317,709
4. Step 4: Simplify right side
   2,143,634x = 11,007,193,008,681
5. Step 5: Solve for x
   x = 11,007,193,008,681/2,143,634
6. Step 6: Final answer
   x = 5,134,828.52