Finding the Third Proportional to 172,144.69 and 372,875.63

Step by Step Solution

1. Step 1: Write the proportion equation
   172,144.69 : 372,875.63 = 372,875.63 : x
2. Step 2: Convert to fraction form
   172,144.69/372,875.63 = 372,875.63/x
3. Step 3: Cross multiply
   172,144.69x = 372,875.63 × 372,875.63
4. Step 4: Simplify right side
   172,144.69x = 139,036,231,719.14
5. Step 5: Solve for x
   x = 139,036,231,719.14/172,144.69
6. Step 6: Final answer
   x = 807,670.77