Finding the Third Proportional to 8,411,772 and 12,603,624

Step by Step Solution

1. Step 1: Write the proportion equation
   8,411,772 : 12,603,624 = 12,603,624 : x
2. Step 2: Convert to fraction form
   8,411,772/12,603,624 = 12,603,624/x
3. Step 3: Cross multiply
   8,411,772x = 12,603,624 × 12,603,624
4. Step 4: Simplify right side
   8,411,772x = 158,851,337,933,376
5. Step 5: Solve for x
   x = 158,851,337,933,376/8,411,772
6. Step 6: Final answer
   x = 18,884,408.41