Finding the Third Proportional to 19,860,190 and 42,855,511

Step by Step Solution

1. Step 1: Write the proportion equation
   19,860,190 : 42,855,511 = 42,855,511 : x
2. Step 2: Convert to fraction form
   19,860,190/42,855,511 = 42,855,511/x
3. Step 3: Cross multiply
   19,860,190x = 42,855,511 × 42,855,511
4. Step 4: Simplify right side
   19,860,190x = 1,836,594,823,071,121
5. Step 5: Solve for x
   x = 1,836,594,823,071,121/19,860,190
6. Step 6: Final answer
   x = 92,476,196.00