Finding the Third Proportional to 41,820.68 and 64,778.48

Step by Step Solution

1. Step 1: Write the proportion equation
   41,820.68 : 64,778.48 = 64,778.48 : x
2. Step 2: Convert to fraction form
   41,820.68/64,778.48 = 64,778.48/x
3. Step 3: Cross multiply
   41,820.68x = 64,778.48 × 64,778.48
4. Step 4: Simplify right side
   41,820.68x = 4,196,252,037.92
5. Step 5: Solve for x
   x = 4,196,252,037.92/41,820.68
6. Step 6: Final answer
   x = 100,339.16