Finding the Third Proportional to 19,860,192 and 42,855,515

Step by Step Solution

1. Step 1: Write the proportion equation
   19,860,192 : 42,855,515 = 42,855,515 : x
2. Step 2: Convert to fraction form
   19,860,192/42,855,515 = 42,855,515/x
3. Step 3: Cross multiply
   19,860,192x = 42,855,515 × 42,855,515
4. Step 4: Simplify right side
   19,860,192x = 1,836,595,165,915,225
5. Step 5: Solve for x
   x = 1,836,595,165,915,225/19,860,192
6. Step 6: Final answer
   x = 92,476,203.95