Finding the Third Proportional to 4,860,489 and 10,636,386

Step by Step Solution

1. Step 1: Write the proportion equation
   4,860,489 : 10,636,386 = 10,636,386 : x
2. Step 2: Convert to fraction form
   4,860,489/10,636,386 = 10,636,386/x
3. Step 3: Cross multiply
   4,860,489x = 10,636,386 × 10,636,386
4. Step 4: Simplify right side
   4,860,489x = 113,132,707,140,996
5. Step 5: Solve for x
   x = 113,132,707,140,996/4,860,489
6. Step 6: Final answer
   x = 23,275,992.84