Finding the Third Proportional to 55,281 and 85,020

Step by Step Solution

1. Step 1: Write the proportion equation
   55,281 : 85,020 = 85,020 : x
2. Step 2: Convert to fraction form
   55,281/85,020 = 85,020/x
3. Step 3: Cross multiply
   55,281x = 85,020 × 85,020
4. Step 4: Simplify right side
   55,281x = 7,228,400,400
5. Step 5: Solve for x
   x = 7,228,400,400/55,281
6. Step 6: Final answer
   x = 130,757.41