Finding the Third Proportional to 171,426 and 262,968

Step by Step Solution

1. Step 1: Write the proportion equation
   171,426 : 262,968 = 262,968 : x
2. Step 2: Convert to fraction form
   171,426/262,968 = 262,968/x
3. Step 3: Cross multiply
   171,426x = 262,968 × 262,968
4. Step 4: Simplify right side
   171,426x = 69,152,169,024
5. Step 5: Solve for x
   x = 69,152,169,024/171,426
6. Step 6: Final answer
   x = 403,393.70