Finding the Third Proportional to 56,417 and 133,665

Step by Step Solution

1. Step 1: Write the proportion equation
   56,417 : 133,665 = 133,665 : x
2. Step 2: Convert to fraction form
   56,417/133,665 = 133,665/x
3. Step 3: Cross multiply
   56,417x = 133,665 × 133,665
4. Step 4: Simplify right side
   56,417x = 17,866,332,225
5. Step 5: Solve for x
   x = 17,866,332,225/56,417
6. Step 6: Final answer
   x = 316,683.49