Finding the Third Proportional to 12,305.25 and 26,221.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,305.25 : 26,221.50 = 26,221.50 : x
2. Step 2: Convert to fraction form
   12,305.25/26,221.50 = 26,221.50/x
3. Step 3: Cross multiply
   12,305.25x = 26,221.50 × 26,221.50
4. Step 4: Simplify right side
   12,305.25x = 687,567,062.25
5. Step 5: Solve for x
   x = 687,567,062.25/12,305.25
6. Step 6: Final answer
   x = 55,875.91