Finding the Third Proportional to 23,836 and 55,420

Step by Step Solution

1. Step 1: Write the proportion equation
   23,836 : 55,420 = 55,420 : x
2. Step 2: Convert to fraction form
   23,836/55,420 = 55,420/x
3. Step 3: Cross multiply
   23,836x = 55,420 × 55,420
4. Step 4: Simplify right side
   23,836x = 3,071,376,400
5. Step 5: Solve for x
   x = 3,071,376,400/23,836
6. Step 6: Final answer
   x = 128,854.52