Finding the Third Proportional to 6,147,664 and 9,877,608

Step by Step Solution

1. Step 1: Write the proportion equation
   6,147,664 : 9,877,608 = 9,877,608 : x
2. Step 2: Convert to fraction form
   6,147,664/9,877,608 = 9,877,608/x
3. Step 3: Cross multiply
   6,147,664x = 9,877,608 × 9,877,608
4. Step 4: Simplify right side
   6,147,664x = 97,567,139,801,664
5. Step 5: Solve for x
   x = 97,567,139,801,664/6,147,664
6. Step 6: Final answer
   x = 15,870,603.83