Finding the Third Proportional to 58,310.50 and 121,799

Step by Step Solution

1. Step 1: Write the proportion equation
   58,310.50 : 121,799 = 121,799 : x
2. Step 2: Convert to fraction form
   58,310.50/121,799 = 121,799/x
3. Step 3: Cross multiply
   58,310.50x = 121,799 × 121,799
4. Step 4: Simplify right side
   58,310.50x = 14,834,996,401
5. Step 5: Solve for x
   x = 14,834,996,401/58,310.50
6. Step 6: Final answer
   x = 254,413.81