Finding the Third Proportional to 8,463,012 and 12,892,812

Step by Step Solution

1. Step 1: Write the proportion equation
   8,463,012 : 12,892,812 = 12,892,812 : x
2. Step 2: Convert to fraction form
   8,463,012/12,892,812 = 12,892,812/x
3. Step 3: Cross multiply
   8,463,012x = 12,892,812 × 12,892,812
4. Step 4: Simplify right side
   8,463,012x = 166,224,601,267,344
5. Step 5: Solve for x
   x = 166,224,601,267,344/8,463,012
6. Step 6: Final answer
   x = 19,641,305.16