Finding the Third Proportional to 21,212.75 and 45,703.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,212.75 : 45,703.50 = 45,703.50 : x
2. Step 2: Convert to fraction form
   21,212.75/45,703.50 = 45,703.50/x
3. Step 3: Cross multiply
   21,212.75x = 45,703.50 × 45,703.50
4. Step 4: Simplify right side
   21,212.75x = 2,088,809,912.25
5. Step 5: Solve for x
   x = 2,088,809,912.25/21,212.75
6. Step 6: Final answer
   x = 98,469.55