Finding the Third Proportional to 5,087.81 and 10,638.84

Step by Step Solution

1. Step 1: Write the proportion equation
   5,087.81 : 10,638.84 = 10,638.84 : x
2. Step 2: Convert to fraction form
   5,087.81/10,638.84 = 10,638.84/x
3. Step 3: Cross multiply
   5,087.81x = 10,638.84 × 10,638.84
4. Step 4: Simplify right side
   5,087.81x = 113,184,996.34
5. Step 5: Solve for x
   x = 113,184,996.34/5,087.81
6. Step 6: Final answer
   x = 22,246.30