Finding the Third Proportional to 12,360 and 18,784.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,360 : 18,784.50 = 18,784.50 : x
2. Step 2: Convert to fraction form
   12,360/18,784.50 = 18,784.50/x
3. Step 3: Cross multiply
   12,360x = 18,784.50 × 18,784.50
4. Step 4: Simplify right side
   12,360x = 352,857,440.25
5. Step 5: Solve for x
   x = 352,857,440.25/12,360
6. Step 6: Final answer
   x = 28,548.34