Finding the Third Proportional to 172,987.50 and 375,495

Step by Step Solution

1. Step 1: Write the proportion equation
   172,987.50 : 375,495 = 375,495 : x
2. Step 2: Convert to fraction form
   172,987.50/375,495 = 375,495/x
3. Step 3: Cross multiply
   172,987.50x = 375,495 × 375,495
4. Step 4: Simplify right side
   172,987.50x = 140,996,495,025
5. Step 5: Solve for x
   x = 140,996,495,025/172,987.50
6. Step 6: Final answer
   x = 815,067.53