Finding the Third Proportional to 13,018.50 and 28,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,018.50 : 28,111.50 = 28,111.50 : x
2. Step 2: Convert to fraction form
   13,018.50/28,111.50 = 28,111.50/x
3. Step 3: Cross multiply
   13,018.50x = 28,111.50 × 28,111.50
4. Step 4: Simplify right side
   13,018.50x = 790,256,432.25
5. Step 5: Solve for x
   x = 790,256,432.25/13,018.50
6. Step 6: Final answer
   x = 60,702.57