Finding the Third Proportional to 30,960 and 51,222.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,960 : 51,222.38 = 51,222.38 : x
2. Step 2: Convert to fraction form
   30,960/51,222.38 = 51,222.38/x
3. Step 3: Cross multiply
   30,960x = 51,222.38 × 51,222.38
4. Step 4: Simplify right side
   30,960x = 2,623,731,700.64
5. Step 5: Solve for x
   x = 2,623,731,700.64/30,960
6. Step 6: Final answer
   x = 84,745.86