Finding the Third Proportional to 37,420 and 55,020

Step by Step Solution

1. Step 1: Write the proportion equation
   37,420 : 55,020 = 55,020 : x
2. Step 2: Convert to fraction form
   37,420/55,020 = 55,020/x
3. Step 3: Cross multiply
   37,420x = 55,020 × 55,020
4. Step 4: Simplify right side
   37,420x = 3,027,200,400
5. Step 5: Solve for x
   x = 3,027,200,400/37,420
6. Step 6: Final answer
   x = 80,897.93