Finding the Third Proportional to 5,847.75 and 12,820.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,847.75 : 12,820.50 = 12,820.50 : x
2. Step 2: Convert to fraction form
   5,847.75/12,820.50 = 12,820.50/x
3. Step 3: Cross multiply
   5,847.75x = 12,820.50 × 12,820.50
4. Step 4: Simplify right side
   5,847.75x = 164,365,220.25
5. Step 5: Solve for x
   x = 164,365,220.25/5,847.75
6. Step 6: Final answer
   x = 28,107.43