Finding the Third Proportional to 21,357 and 45,871.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,357 : 45,871.50 = 45,871.50 : x
2. Step 2: Convert to fraction form
   21,357/45,871.50 = 45,871.50/x
3. Step 3: Cross multiply
   21,357x = 45,871.50 × 45,871.50
4. Step 4: Simplify right side
   21,357x = 2,104,194,512.25
5. Step 5: Solve for x
   x = 2,104,194,512.25/21,357
6. Step 6: Final answer
   x = 98,524.82