Finding the Third Proportional to 5,890.88 and 12,820.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,890.88 : 12,820.88 = 12,820.88 : x
2. Step 2: Convert to fraction form
   5,890.88/12,820.88 = 12,820.88/x
3. Step 3: Cross multiply
   5,890.88x = 12,820.88 × 12,820.88
4. Step 4: Simplify right side
   5,890.88x = 164,374,835.77
5. Step 5: Solve for x
   x = 164,374,835.77/5,890.88
6. Step 6: Final answer
   x = 27,903.30