Finding the Third Proportional to 3,936,960 and 8,585,424

Step by Step Solution

1. Step 1: Write the proportion equation
   3,936,960 : 8,585,424 = 8,585,424 : x
2. Step 2: Convert to fraction form
   3,936,960/8,585,424 = 8,585,424/x
3. Step 3: Cross multiply
   3,936,960x = 8,585,424 × 8,585,424
4. Step 4: Simplify right side
   3,936,960x = 73,709,505,259,776
5. Step 5: Solve for x
   x = 73,709,505,259,776/3,936,960
6. Step 6: Final answer
   x = 18,722,442.00