Finding the Third Proportional to 89,032 and 137,580

Step by Step Solution

1. Step 1: Write the proportion equation
   89,032 : 137,580 = 137,580 : x
2. Step 2: Convert to fraction form
   89,032/137,580 = 137,580/x
3. Step 3: Cross multiply
   89,032x = 137,580 × 137,580
4. Step 4: Simplify right side
   89,032x = 18,928,256,400
5. Step 5: Solve for x
   x = 18,928,256,400/89,032
6. Step 6: Final answer
   x = 212,600.60