Finding the Third Proportional to 40,648.50 and 53,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,648.50 : 53,947.50 = 53,947.50 : x
2. Step 2: Convert to fraction form
   40,648.50/53,947.50 = 53,947.50/x
3. Step 3: Cross multiply
   40,648.50x = 53,947.50 × 53,947.50
4. Step 4: Simplify right side
   40,648.50x = 2,910,332,756.25
5. Step 5: Solve for x
   x = 2,910,332,756.25/40,648.50
6. Step 6: Final answer
   x = 71,597.54