Finding the Third Proportional to 8,072,736 and 12,143,124

Step by Step Solution

1. Step 1: Write the proportion equation
   8,072,736 : 12,143,124 = 12,143,124 : x
2. Step 2: Convert to fraction form
   8,072,736/12,143,124 = 12,143,124/x
3. Step 3: Cross multiply
   8,072,736x = 12,143,124 × 12,143,124
4. Step 4: Simplify right side
   8,072,736x = 147,455,460,479,376
5. Step 5: Solve for x
   x = 147,455,460,479,376/8,072,736
6. Step 6: Final answer
   x = 18,265,859.37