Finding the Third Proportional to 9,330 and 12,127.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,330 : 12,127.50 = 12,127.50 : x
2. Step 2: Convert to fraction form
   9,330/12,127.50 = 12,127.50/x
3. Step 3: Cross multiply
   9,330x = 12,127.50 × 12,127.50
4. Step 4: Simplify right side
   9,330x = 147,076,256.25
5. Step 5: Solve for x
   x = 147,076,256.25/9,330
6. Step 6: Final answer
   x = 15,763.80