Finding the Third Proportional to 59,155 and 128,146

Step by Step Solution

1. Step 1: Write the proportion equation
   59,155 : 128,146 = 128,146 : x
2. Step 2: Convert to fraction form
   59,155/128,146 = 128,146/x
3. Step 3: Cross multiply
   59,155x = 128,146 × 128,146
4. Step 4: Simplify right side
   59,155x = 16,421,397,316
5. Step 5: Solve for x
   x = 16,421,397,316/59,155
6. Step 6: Final answer
   x = 277,599.48