Finding the Third Proportional to 172,065.50 and 253,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,065.50 : 253,020.50 = 253,020.50 : x
2. Step 2: Convert to fraction form
   172,065.50/253,020.50 = 253,020.50/x
3. Step 3: Cross multiply
   172,065.50x = 253,020.50 × 253,020.50
4. Step 4: Simplify right side
   172,065.50x = 64,019,373,420.25
5. Step 5: Solve for x
   x = 64,019,373,420.25/172,065.50
6. Step 6: Final answer
   x = 372,063.97