Finding the Third Proportional to 56,413.13 and 123,897.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,413.13 : 123,897.38 = 123,897.38 : x
2. Step 2: Convert to fraction form
   56,413.13/123,897.38 = 123,897.38/x
3. Step 3: Cross multiply
   56,413.13x = 123,897.38 × 123,897.38
4. Step 4: Simplify right side
   56,413.13x = 15,350,559,531.89
5. Step 5: Solve for x
   x = 15,350,559,531.89/56,413.13
6. Step 6: Final answer
   x = 272,109.72