Finding the Third Proportional to 7,874,544 and 12,147,608

Step by Step Solution

1. Step 1: Write the proportion equation
   7,874,544 : 12,147,608 = 12,147,608 : x
2. Step 2: Convert to fraction form
   7,874,544/12,147,608 = 12,147,608/x
3. Step 3: Cross multiply
   7,874,544x = 12,147,608 × 12,147,608
4. Step 4: Simplify right side
   7,874,544x = 147,564,380,121,664
5. Step 5: Solve for x
   x = 147,564,380,121,664/7,874,544
6. Step 6: Final answer
   x = 18,739,419.09