Finding the Third Proportional to 58,413.50 and 91,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,413.50 : 91,513.50 = 91,513.50 : x
2. Step 2: Convert to fraction form
   58,413.50/91,513.50 = 91,513.50/x
3. Step 3: Cross multiply
   58,413.50x = 91,513.50 × 91,513.50
4. Step 4: Simplify right side
   58,413.50x = 8,374,720,682.25
5. Step 5: Solve for x
   x = 8,374,720,682.25/58,413.50
6. Step 6: Final answer
   x = 143,369.61