Finding the Third Proportional to 12,967.50 and 28,279.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,967.50 : 28,279.50 = 28,279.50 : x
2. Step 2: Convert to fraction form
   12,967.50/28,279.50 = 28,279.50/x
3. Step 3: Cross multiply
   12,967.50x = 28,279.50 × 28,279.50
4. Step 4: Simplify right side
   12,967.50x = 799,730,120.25
5. Step 5: Solve for x
   x = 799,730,120.25/12,967.50
6. Step 6: Final answer
   x = 61,671.88