Finding the Third Proportional to 7,867,256 and 12,150,316

Step by Step Solution

1. Step 1: Write the proportion equation
   7,867,256 : 12,150,316 = 12,150,316 : x
2. Step 2: Convert to fraction form
   7,867,256/12,150,316 = 12,150,316/x
3. Step 3: Cross multiply
   7,867,256x = 12,150,316 × 12,150,316
4. Step 4: Simplify right side
   7,867,256x = 147,630,178,899,856
5. Step 5: Solve for x
   x = 147,630,178,899,856/7,867,256
6. Step 6: Final answer
   x = 18,765,142.37