Finding the Third Proportional to 8,160,217 and 12,345,279

Step by Step Solution

1. Step 1: Write the proportion equation
   8,160,217 : 12,345,279 = 12,345,279 : x
2. Step 2: Convert to fraction form
   8,160,217/12,345,279 = 12,345,279/x
3. Step 3: Cross multiply
   8,160,217x = 12,345,279 × 12,345,279
4. Step 4: Simplify right side
   8,160,217x = 152,405,913,587,841
5. Step 5: Solve for x
   x = 152,405,913,587,841/8,160,217
6. Step 6: Final answer
   x = 18,676,698.62