Finding the Third Proportional to 58,504 and 89,867

Step by Step Solution

1. Step 1: Write the proportion equation
   58,504 : 89,867 = 89,867 : x
2. Step 2: Convert to fraction form
   58,504/89,867 = 89,867/x
3. Step 3: Cross multiply
   58,504x = 89,867 × 89,867
4. Step 4: Simplify right side
   58,504x = 8,076,077,689
5. Step 5: Solve for x
   x = 8,076,077,689/58,504
6. Step 6: Final answer
   x = 138,043.17