Finding the Third Proportional to 25,145 and 55,312

Step by Step Solution

1. Step 1: Write the proportion equation
   25,145 : 55,312 = 55,312 : x
2. Step 2: Convert to fraction form
   25,145/55,312 = 55,312/x
3. Step 3: Cross multiply
   25,145x = 55,312 × 55,312
4. Step 4: Simplify right side
   25,145x = 3,059,417,344
5. Step 5: Solve for x
   x = 3,059,417,344/25,145
6. Step 6: Final answer
   x = 121,671.00