Finding the Third Proportional to 19,855 and 30,807

Step by Step Solution

1. Step 1: Write the proportion equation
   19,855 : 30,807 = 30,807 : x
2. Step 2: Convert to fraction form
   19,855/30,807 = 30,807/x
3. Step 3: Cross multiply
   19,855x = 30,807 × 30,807
4. Step 4: Simplify right side
   19,855x = 949,071,249
5. Step 5: Solve for x
   x = 949,071,249/19,855
6. Step 6: Final answer
   x = 47,800.11