Finding the Third Proportional to 19,800 and 43,155

Step by Step Solution

1. Step 1: Write the proportion equation
   19,800 : 43,155 = 43,155 : x
2. Step 2: Convert to fraction form
   19,800/43,155 = 43,155/x
3. Step 3: Cross multiply
   19,800x = 43,155 × 43,155
4. Step 4: Simplify right side
   19,800x = 1,862,354,025
5. Step 5: Solve for x
   x = 1,862,354,025/19,800
6. Step 6: Final answer
   x = 94,058.28