Finding the Third Proportional to 5,812,316 and 7,978,728

Step by Step Solution

1. Step 1: Write the proportion equation
   5,812,316 : 7,978,728 = 7,978,728 : x
2. Step 2: Convert to fraction form
   5,812,316/7,978,728 = 7,978,728/x
3. Step 3: Cross multiply
   5,812,316x = 7,978,728 × 7,978,728
4. Step 4: Simplify right side
   5,812,316x = 63,660,100,497,984
5. Step 5: Solve for x
   x = 63,660,100,497,984/5,812,316
6. Step 6: Final answer
   x = 10,952,622.07