Finding the Third Proportional to 34,173 and 71,800

Step by Step Solution

1. Step 1: Write the proportion equation
   34,173 : 71,800 = 71,800 : x
2. Step 2: Convert to fraction form
   34,173/71,800 = 71,800/x
3. Step 3: Cross multiply
   34,173x = 71,800 × 71,800
4. Step 4: Simplify right side
   34,173x = 5,155,240,000
5. Step 5: Solve for x
   x = 5,155,240,000/34,173
6. Step 6: Final answer
   x = 150,857.11