Finding the Third Proportional to 58,359 and 128,066

Step by Step Solution

1. Step 1: Write the proportion equation
   58,359 : 128,066 = 128,066 : x
2. Step 2: Convert to fraction form
   58,359/128,066 = 128,066/x
3. Step 3: Cross multiply
   58,359x = 128,066 × 128,066
4. Step 4: Simplify right side
   58,359x = 16,400,900,356
5. Step 5: Solve for x
   x = 16,400,900,356/58,359
6. Step 6: Final answer
   x = 281,034.64