Finding the Third Proportional to 40,839.75 and 55,426.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,839.75 : 55,426.50 = 55,426.50 : x
2. Step 2: Convert to fraction form
   40,839.75/55,426.50 = 55,426.50/x
3. Step 3: Cross multiply
   40,839.75x = 55,426.50 × 55,426.50
4. Step 4: Simplify right side
   40,839.75x = 3,072,096,902.25
5. Step 5: Solve for x
   x = 3,072,096,902.25/40,839.75
6. Step 6: Final answer
   x = 75,223.21