Finding the Third Proportional to 12,216 and 28,074

Step by Step Solution

1. Step 1: Write the proportion equation
   12,216 : 28,074 = 28,074 : x
2. Step 2: Convert to fraction form
   12,216/28,074 = 28,074/x
3. Step 3: Cross multiply
   12,216x = 28,074 × 28,074
4. Step 4: Simplify right side
   12,216x = 788,149,476
5. Step 5: Solve for x
   x = 788,149,476/12,216
6. Step 6: Final answer
   x = 64,517.80