Finding the Third Proportional to 8,613,716 and 12,546,670

Step by Step Solution

1. Step 1: Write the proportion equation
   8,613,716 : 12,546,670 = 12,546,670 : x
2. Step 2: Convert to fraction form
   8,613,716/12,546,670 = 12,546,670/x
3. Step 3: Cross multiply
   8,613,716x = 12,546,670 × 12,546,670
4. Step 4: Simplify right side
   8,613,716x = 157,418,928,088,900
5. Step 5: Solve for x
   x = 157,418,928,088,900/8,613,716
6. Step 6: Final answer
   x = 18,275,379.42