Finding the Third Proportional to 49,260.09 and 78,013.55

Step by Step Solution

1. Step 1: Write the proportion equation
   49,260.09 : 78,013.55 = 78,013.55 : x
2. Step 2: Convert to fraction form
   49,260.09/78,013.55 = 78,013.55/x
3. Step 3: Cross multiply
   49,260.09x = 78,013.55 × 78,013.55
4. Step 4: Simplify right side
   49,260.09x = 6,086,113,496.02
5. Step 5: Solve for x
   x = 6,086,113,496.02/49,260.09
6. Step 6: Final answer
   x = 123,550.59