Finding the Third Proportional to 21,388.50 and 51,527.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,388.50 : 51,527.25 = 51,527.25 : x
2. Step 2: Convert to fraction form
   21,388.50/51,527.25 = 51,527.25/x
3. Step 3: Cross multiply
   21,388.50x = 51,527.25 × 51,527.25
4. Step 4: Simplify right side
   21,388.50x = 2,655,057,492.56
5. Step 5: Solve for x
   x = 2,655,057,492.56/21,388.50
6. Step 6: Final answer
   x = 124,134.82