Finding the Third Proportional to 20,390.06 and 41,355.56

Step by Step Solution

1. Step 1: Write the proportion equation
   20,390.06 : 41,355.56 = 41,355.56 : x
2. Step 2: Convert to fraction form
   20,390.06/41,355.56 = 41,355.56/x
3. Step 3: Cross multiply
   20,390.06x = 41,355.56 × 41,355.56
4. Step 4: Simplify right side
   20,390.06x = 1,710,282,549.69
5. Step 5: Solve for x
   x = 1,710,282,549.69/20,390.06
6. Step 6: Final answer
   x = 83,878.24