Finding the Third Proportional to 172,654.88 and 264,510.56

Step by Step Solution

1. Step 1: Write the proportion equation
   172,654.88 : 264,510.56 = 264,510.56 : x
2. Step 2: Convert to fraction form
   172,654.88/264,510.56 = 264,510.56/x
3. Step 3: Cross multiply
   172,654.88x = 264,510.56 × 264,510.56
4. Step 4: Simplify right side
   172,654.88x = 69,965,837,674.07
5. Step 5: Solve for x
   x = 69,965,837,674.07/172,654.88
6. Step 6: Final answer
   x = 405,235.23