Finding the Third Proportional to 8,513,099,196 and 19,890,441,900

Step by Step Solution

1. Step 1: Write the proportion equation
   8,513,099,196 : 19,890,441,900 = 19,890,441,900 : x
2. Step 2: Convert to fraction form
   8,513,099,196/19,890,441,900 = 19,890,441,900/x
3. Step 3: Cross multiply
   8,513,099,196x = 19,890,441,900 × 19,890,441,900
4. Step 4: Simplify right side
   8,513,099,196x = 395,629,678,977,275,592,704
5. Step 5: Solve for x
   x = 395,629,678,977,275,592,704/8,513,099,196
6. Step 6: Final answer
   x = 46,473,049,340.62