Finding the Third Proportional to 1,631,642 and 3,586,308

Step by Step Solution

1. Step 1: Write the proportion equation
   1,631,642 : 3,586,308 = 3,586,308 : x
2. Step 2: Convert to fraction form
   1,631,642/3,586,308 = 3,586,308/x
3. Step 3: Cross multiply
   1,631,642x = 3,586,308 × 3,586,308
4. Step 4: Simplify right side
   1,631,642x = 12,861,605,070,864
5. Step 5: Solve for x
   x = 12,861,605,070,864/1,631,642
6. Step 6: Final answer
   x = 7,882,614.61