Finding the Third Proportional to 1,816,145 and 3,986,530

Step by Step Solution

1. Step 1: Write the proportion equation
   1,816,145 : 3,986,530 = 3,986,530 : x
2. Step 2: Convert to fraction form
   1,816,145/3,986,530 = 3,986,530/x
3. Step 3: Cross multiply
   1,816,145x = 3,986,530 × 3,986,530
4. Step 4: Simplify right side
   1,816,145x = 15,892,421,440,900
5. Step 5: Solve for x
   x = 15,892,421,440,900/1,816,145
6. Step 6: Final answer
   x = 8,750,634.69