Finding the Third Proportional to 21,900 and 45,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,900 : 45,355.50 = 45,355.50 : x
2. Step 2: Convert to fraction form
   21,900/45,355.50 = 45,355.50/x
3. Step 3: Cross multiply
   21,900x = 45,355.50 × 45,355.50
4. Step 4: Simplify right side
   21,900x = 2,057,121,380.25
5. Step 5: Solve for x
   x = 2,057,121,380.25/21,900
6. Step 6: Final answer
   x = 93,932.48