Finding the Third Proportional to 172,972.50 and 375,468

Step by Step Solution

1. Step 1: Write the proportion equation
   172,972.50 : 375,468 = 375,468 : x
2. Step 2: Convert to fraction form
   172,972.50/375,468 = 375,468/x
3. Step 3: Cross multiply
   172,972.50x = 375,468 × 375,468
4. Step 4: Simplify right side
   172,972.50x = 140,976,219,024
5. Step 5: Solve for x
   x = 140,976,219,024/172,972.50
6. Step 6: Final answer
   x = 815,020.99