Finding the Third Proportional to 10,188 and 15,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,188 : 15,280.50 = 15,280.50 : x
2. Step 2: Convert to fraction form
   10,188/15,280.50 = 15,280.50/x
3. Step 3: Cross multiply
   10,188x = 15,280.50 × 15,280.50
4. Step 4: Simplify right side
   10,188x = 233,493,680.25
5. Step 5: Solve for x
   x = 233,493,680.25/10,188
6. Step 6: Final answer
   x = 22,918.50