Finding the Third Proportional to 80,590 and 174,140

Step by Step Solution

1. Step 1: Write the proportion equation
   80,590 : 174,140 = 174,140 : x
2. Step 2: Convert to fraction form
   80,590/174,140 = 174,140/x
3. Step 3: Cross multiply
   80,590x = 174,140 × 174,140
4. Step 4: Simplify right side
   80,590x = 30,324,739,600
5. Step 5: Solve for x
   x = 30,324,739,600/80,590
6. Step 6: Final answer
   x = 376,284.15