Finding the Third Proportional to 123,403.50 and 262,377.38

Step by Step Solution

1. Step 1: Write the proportion equation
   123,403.50 : 262,377.38 = 262,377.38 : x
2. Step 2: Convert to fraction form
   123,403.50/262,377.38 = 262,377.38/x
3. Step 3: Cross multiply
   123,403.50x = 262,377.38 × 262,377.38
4. Step 4: Simplify right side
   123,403.50x = 68,841,886,911.89
5. Step 5: Solve for x
   x = 68,841,886,911.89/123,403.50
6. Step 6: Final answer
   x = 557,860.08