Finding the Third Proportional to 12,520 and 28,112

Step by Step Solution

1. Step 1: Write the proportion equation
   12,520 : 28,112 = 28,112 : x
2. Step 2: Convert to fraction form
   12,520/28,112 = 28,112/x
3. Step 3: Cross multiply
   12,520x = 28,112 × 28,112
4. Step 4: Simplify right side
   12,520x = 790,284,544
5. Step 5: Solve for x
   x = 790,284,544/12,520
6. Step 6: Final answer
   x = 63,121.77