Finding the Third Proportional to 8,321,857,382,650.50 and 12,731,509,998,405

Step by Step Solution

1. Step 1: Write the proportion equation
   8,321,857,382,650.50 : 12,731,509,998,405 = 12,731,509,998,405 : x
2. Step 2: Convert to fraction form
   8,321,857,382,650.50/12,731,509,998,405 = 12,731,509,998,405/x
3. Step 3: Cross multiply
   8,321,857,382,650.50x = 12,731,509,998,405 × 12,731,509,998,405
4. Step 4: Simplify right side
   8,321,857,382,650.50x = 162,091,346,839,486,481,137,926,144
5. Step 5: Solve for x
   x = 162,091,346,839,486,481,137,926,144/8,321,857,382,650.50
6. Step 6: Final answer
   x = 19,477,784,752,405.91