Finding the Third Proportional to 171,620 and 262,536

Step by Step Solution

1. Step 1: Write the proportion equation
   171,620 : 262,536 = 262,536 : x
2. Step 2: Convert to fraction form
   171,620/262,536 = 262,536/x
3. Step 3: Cross multiply
   171,620x = 262,536 × 262,536
4. Step 4: Simplify right side
   171,620x = 68,925,151,296
5. Step 5: Solve for x
   x = 68,925,151,296/171,620
6. Step 6: Final answer
   x = 401,614.91