Finding the Third Proportional to 42,242.13 and 65,786.55

Step by Step Solution

1. Step 1: Write the proportion equation
   42,242.13 : 65,786.55 = 65,786.55 : x
2. Step 2: Convert to fraction form
   42,242.13/65,786.55 = 65,786.55/x
3. Step 3: Cross multiply
   42,242.13x = 65,786.55 × 65,786.55
4. Step 4: Simplify right side
   42,242.13x = 4,327,870,777.65
5. Step 5: Solve for x
   x = 4,327,870,777.65/42,242.13
6. Step 6: Final answer
   x = 102,453.89