Finding the Third Proportional to 3,591,656 and 7,980,476

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591,656 : 7,980,476 = 7,980,476 : x
2. Step 2: Convert to fraction form
   3,591,656/7,980,476 = 7,980,476/x
3. Step 3: Cross multiply
   3,591,656x = 7,980,476 × 7,980,476
4. Step 4: Simplify right side
   3,591,656x = 63,687,997,186,576
5. Step 5: Solve for x
   x = 63,687,997,186,576/3,591,656
6. Step 6: Final answer
   x = 17,732,209.65