Finding the Third Proportional to 40,612.50 and 55,329.75

Step by Step Solution

1. Step 1: Write the proportion equation
   40,612.50 : 55,329.75 = 55,329.75 : x
2. Step 2: Convert to fraction form
   40,612.50/55,329.75 = 55,329.75/x
3. Step 3: Cross multiply
   40,612.50x = 55,329.75 × 55,329.75
4. Step 4: Simplify right side
   40,612.50x = 3,061,381,235.06
5. Step 5: Solve for x
   x = 3,061,381,235.06/40,612.50
6. Step 6: Final answer
   x = 75,380.27