Finding the Third Proportional to 21,157.50 and 45,081.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,157.50 : 45,081.75 = 45,081.75 : x
2. Step 2: Convert to fraction form
   21,157.50/45,081.75 = 45,081.75/x
3. Step 3: Cross multiply
   21,157.50x = 45,081.75 × 45,081.75
4. Step 4: Simplify right side
   21,157.50x = 2,032,364,183.06
5. Step 5: Solve for x
   x = 2,032,364,183.06/21,157.50
6. Step 6: Final answer
   x = 96,058.81