Finding the Third Proportional to 123,375 and 262,315

Step by Step Solution

1. Step 1: Write the proportion equation
   123,375 : 262,315 = 262,315 : x
2. Step 2: Convert to fraction form
   123,375/262,315 = 262,315/x
3. Step 3: Cross multiply
   123,375x = 262,315 × 262,315
4. Step 4: Simplify right side
   123,375x = 68,809,159,225
5. Step 5: Solve for x
   x = 68,809,159,225/123,375
6. Step 6: Final answer
   x = 557,723.68