Finding the Third Proportional to 171,490.50 and 231,329.25

Step by Step Solution

1. Step 1: Write the proportion equation
   171,490.50 : 231,329.25 = 231,329.25 : x
2. Step 2: Convert to fraction form
   171,490.50/231,329.25 = 231,329.25/x
3. Step 3: Cross multiply
   171,490.50x = 231,329.25 × 231,329.25
4. Step 4: Simplify right side
   171,490.50x = 53,513,221,905.56
5. Step 5: Solve for x
   x = 53,513,221,905.56/171,490.50
6. Step 6: Final answer
   x = 312,047.73