Finding the Third Proportional to 5,535.84 and 10,917.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,535.84 : 10,917.91 = 10,917.91 : x
2. Step 2: Convert to fraction form
   5,535.84/10,917.91 = 10,917.91/x
3. Step 3: Cross multiply
   5,535.84x = 10,917.91 × 10,917.91
4. Step 4: Simplify right side
   5,535.84x = 119,200,847.48
5. Step 5: Solve for x
   x = 119,200,847.48/5,535.84
6. Step 6: Final answer
   x = 21,532.55