Finding the Third Proportional to 23,418 and 55,279

Step by Step Solution

1. Step 1: Write the proportion equation
   23,418 : 55,279 = 55,279 : x
2. Step 2: Convert to fraction form
   23,418/55,279 = 55,279/x
3. Step 3: Cross multiply
   23,418x = 55,279 × 55,279
4. Step 4: Simplify right side
   23,418x = 3,055,767,841
5. Step 5: Solve for x
   x = 3,055,767,841/23,418
6. Step 6: Final answer
   x = 130,487.99