Finding the Third Proportional to 171,715 and 262,700

Step by Step Solution

1. Step 1: Write the proportion equation
   171,715 : 262,700 = 262,700 : x
2. Step 2: Convert to fraction form
   171,715/262,700 = 262,700/x
3. Step 3: Cross multiply
   171,715x = 262,700 × 262,700
4. Step 4: Simplify right side
   171,715x = 69,011,290,000
5. Step 5: Solve for x
   x = 69,011,290,000/171,715
6. Step 6: Final answer
   x = 401,894.36