Finding the Third Proportional to 49,212.56 and 72,781.03

Step by Step Solution

1. Step 1: Write the proportion equation
   49,212.56 : 72,781.03 = 72,781.03 : x
2. Step 2: Convert to fraction form
   49,212.56/72,781.03 = 72,781.03/x
3. Step 3: Cross multiply
   49,212.56x = 72,781.03 × 72,781.03
4. Step 4: Simplify right side
   49,212.56x = 5,297,078,509.81
5. Step 5: Solve for x
   x = 5,297,078,509.81/49,212.56
6. Step 6: Final answer
   x = 107,636.71