Finding the Third Proportional to 3,655,168 and 7,920,512

Step by Step Solution

1. Step 1: Write the proportion equation
   3,655,168 : 7,920,512 = 7,920,512 : x
2. Step 2: Convert to fraction form
   3,655,168/7,920,512 = 7,920,512/x
3. Step 3: Cross multiply
   3,655,168x = 7,920,512 × 7,920,512
4. Step 4: Simplify right side
   3,655,168x = 62,734,510,342,144
5. Step 5: Solve for x
   x = 62,734,510,342,144/3,655,168
6. Step 6: Final answer
   x = 17,163,235.82