Finding the Third Proportional to 21,153.75 and 45,223.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,153.75 : 45,223.50 = 45,223.50 : x
2. Step 2: Convert to fraction form
   21,153.75/45,223.50 = 45,223.50/x
3. Step 3: Cross multiply
   21,153.75x = 45,223.50 × 45,223.50
4. Step 4: Simplify right side
   21,153.75x = 2,045,164,952.25
5. Step 5: Solve for x
   x = 2,045,164,952.25/21,153.75
6. Step 6: Final answer
   x = 96,680.96