Finding the Third Proportional to 12,421.48 and 26,380.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,421.48 : 26,380.69 = 26,380.69 : x
2. Step 2: Convert to fraction form
   12,421.48/26,380.69 = 26,380.69/x
3. Step 3: Cross multiply
   12,421.48x = 26,380.69 × 26,380.69
4. Step 4: Simplify right side
   12,421.48x = 695,940,672.97
5. Step 5: Solve for x
   x = 695,940,672.97/12,421.48
6. Step 6: Final answer
   x = 56,027.21