Finding the Third Proportional to 5,890.87 and 12,818.32

Step by Step Solution

1. Step 1: Write the proportion equation
   5,890.87 : 12,818.32 = 12,818.32 : x
2. Step 2: Convert to fraction form
   5,890.87/12,818.32 = 12,818.32/x
3. Step 3: Cross multiply
   5,890.87x = 12,818.32 × 12,818.32
4. Step 4: Simplify right side
   5,890.87x = 164,309,335.63
5. Step 5: Solve for x
   x = 164,309,335.63/5,890.87
6. Step 6: Final answer
   x = 27,892.21