Finding the Third Proportional to 40,990.50 and 55,626.75

Step by Step Solution

1. Step 1: Write the proportion equation
   40,990.50 : 55,626.75 = 55,626.75 : x
2. Step 2: Convert to fraction form
   40,990.50/55,626.75 = 55,626.75/x
3. Step 3: Cross multiply
   40,990.50x = 55,626.75 × 55,626.75
4. Step 4: Simplify right side
   40,990.50x = 3,094,335,315.56
5. Step 5: Solve for x
   x = 3,094,335,315.56/40,990.50
6. Step 6: Final answer
   x = 75,489.08