Finding the Third Proportional to 10,813.50 and 26,171.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,813.50 : 26,171.86 = 26,171.86 : x
2. Step 2: Convert to fraction form
   10,813.50/26,171.86 = 26,171.86/x
3. Step 3: Cross multiply
   10,813.50x = 26,171.86 × 26,171.86
4. Step 4: Simplify right side
   10,813.50x = 684,966,223.14
5. Step 5: Solve for x
   x = 684,966,223.14/10,813.50
6. Step 6: Final answer
   x = 63,343.62