Finding the Third Proportional to 19,860,051 and 42,855,234

Step by Step Solution

1. Step 1: Write the proportion equation
   19,860,051 : 42,855,234 = 42,855,234 : x
2. Step 2: Convert to fraction form
   19,860,051/42,855,234 = 42,855,234/x
3. Step 3: Cross multiply
   19,860,051x = 42,855,234 × 42,855,234
4. Step 4: Simplify right side
   19,860,051x = 1,836,571,081,194,756
5. Step 5: Solve for x
   x = 1,836,571,081,194,756/19,860,051
6. Step 6: Final answer
   x = 92,475,647.78