Finding the Third Proportional to 8,546,019,732 and 12,908,331,909

Step by Step Solution

1. Step 1: Write the proportion equation
   8,546,019,732 : 12,908,331,909 = 12,908,331,909 : x
2. Step 2: Convert to fraction form
   8,546,019,732/12,908,331,909 = 12,908,331,909/x
3. Step 3: Cross multiply
   8,546,019,732x = 12,908,331,909 × 12,908,331,909
4. Step 4: Simplify right side
   8,546,019,732x = 166,625,032,672,907,591,680
5. Step 5: Solve for x
   x = 166,625,032,672,907,591,680/8,546,019,732
6. Step 6: Final answer
   x = 19,497,384,501.58