Finding the Third Proportional to 57,408.75 and 77,501.81

Step by Step Solution

1. Step 1: Write the proportion equation
   57,408.75 : 77,501.81 = 77,501.81 : x
2. Step 2: Convert to fraction form
   57,408.75/77,501.81 = 77,501.81/x
3. Step 3: Cross multiply
   57,408.75x = 77,501.81 × 77,501.81
4. Step 4: Simplify right side
   57,408.75x = 6,006,530,940.79
5. Step 5: Solve for x
   x = 6,006,530,940.79/57,408.75
6. Step 6: Final answer
   x = 104,627.45