Finding the Third Proportional to 55,525 and 89,420

Step by Step Solution

1. Step 1: Write the proportion equation
   55,525 : 89,420 = 89,420 : x
2. Step 2: Convert to fraction form
   55,525/89,420 = 89,420/x
3. Step 3: Cross multiply
   55,525x = 89,420 × 89,420
4. Step 4: Simplify right side
   55,525x = 7,995,936,400
5. Step 5: Solve for x
   x = 7,995,936,400/55,525
6. Step 6: Final answer
   x = 144,006.06