Finding the Third Proportional to 40,647.50 and 53,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,647.50 : 53,931.50 = 53,931.50 : x
2. Step 2: Convert to fraction form
   40,647.50/53,931.50 = 53,931.50/x
3. Step 3: Cross multiply
   40,647.50x = 53,931.50 × 53,931.50
4. Step 4: Simplify right side
   40,647.50x = 2,908,606,692.25
5. Step 5: Solve for x
   x = 2,908,606,692.25/40,647.50
6. Step 6: Final answer
   x = 71,556.84