Finding the Third Proportional to 4,860,520 and 10,636,447

Step by Step Solution

1. Step 1: Write the proportion equation
   4,860,520 : 10,636,447 = 10,636,447 : x
2. Step 2: Convert to fraction form
   4,860,520/10,636,447 = 10,636,447/x
3. Step 3: Cross multiply
   4,860,520x = 10,636,447 × 10,636,447
4. Step 4: Simplify right side
   4,860,520x = 113,134,004,783,809
5. Step 5: Solve for x
   x = 113,134,004,783,809/4,860,520
6. Step 6: Final answer
   x = 23,276,111.36