Finding the Third Proportional to 25,629 and 55,209

Step by Step Solution

1. Step 1: Write the proportion equation
   25,629 : 55,209 = 55,209 : x
2. Step 2: Convert to fraction form
   25,629/55,209 = 55,209/x
3. Step 3: Cross multiply
   25,629x = 55,209 × 55,209
4. Step 4: Simplify right side
   25,629x = 3,048,033,681
5. Step 5: Solve for x
   x = 3,048,033,681/25,629
6. Step 6: Final answer
   x = 118,929.09