Finding the Third Proportional to 80,424.75 and 174,090

Step by Step Solution

1. Step 1: Write the proportion equation
   80,424.75 : 174,090 = 174,090 : x
2. Step 2: Convert to fraction form
   80,424.75/174,090 = 174,090/x
3. Step 3: Cross multiply
   80,424.75x = 174,090 × 174,090
4. Step 4: Simplify right side
   80,424.75x = 30,307,328,100
5. Step 5: Solve for x
   x = 30,307,328,100/80,424.75
6. Step 6: Final answer
   x = 376,840.81