Finding the Third Proportional to 172,105.50 and 372,813

Step by Step Solution

1. Step 1: Write the proportion equation
   172,105.50 : 372,813 = 372,813 : x
2. Step 2: Convert to fraction form
   172,105.50/372,813 = 372,813/x
3. Step 3: Cross multiply
   172,105.50x = 372,813 × 372,813
4. Step 4: Simplify right side
   172,105.50x = 138,989,532,969
5. Step 5: Solve for x
   x = 138,989,532,969/172,105.50
6. Step 6: Final answer
   x = 807,583.33