Finding the Third Proportional to 56,640.50 and 124,513

Step by Step Solution

1. Step 1: Write the proportion equation
   56,640.50 : 124,513 = 124,513 : x
2. Step 2: Convert to fraction form
   56,640.50/124,513 = 124,513/x
3. Step 3: Cross multiply
   56,640.50x = 124,513 × 124,513
4. Step 4: Simplify right side
   56,640.50x = 15,503,487,169
5. Step 5: Solve for x
   x = 15,503,487,169/56,640.50
6. Step 6: Final answer
   x = 273,717.34