Finding the Third Proportional to 39,308 and 55,574

Step by Step Solution

1. Step 1: Write the proportion equation
   39,308 : 55,574 = 55,574 : x
2. Step 2: Convert to fraction form
   39,308/55,574 = 55,574/x
3. Step 3: Cross multiply
   39,308x = 55,574 × 55,574
4. Step 4: Simplify right side
   39,308x = 3,088,469,476
5. Step 5: Solve for x
   x = 3,088,469,476/39,308
6. Step 6: Final answer
   x = 78,571.02