Finding the Third Proportional to 1,631,640 and 3,586,304

Step by Step Solution

1. Step 1: Write the proportion equation
   1,631,640 : 3,586,304 = 3,586,304 : x
2. Step 2: Convert to fraction form
   1,631,640/3,586,304 = 3,586,304/x
3. Step 3: Cross multiply
   1,631,640x = 3,586,304 × 3,586,304
4. Step 4: Simplify right side
   1,631,640x = 12,861,576,380,416
5. Step 5: Solve for x
   x = 12,861,576,380,416/1,631,640
6. Step 6: Final answer
   x = 7,882,606.69