Finding the Third Proportional to 1,438,542 and 2,147,966

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438,542 : 2,147,966 = 2,147,966 : x
2. Step 2: Convert to fraction form
   1,438,542/2,147,966 = 2,147,966/x
3. Step 3: Cross multiply
   1,438,542x = 2,147,966 × 2,147,966
4. Step 4: Simplify right side
   1,438,542x = 4,613,757,937,156
5. Step 5: Solve for x
   x = 4,613,757,937,156/1,438,542
6. Step 6: Final answer
   x = 3,207,245.90