Finding the Third Proportional to 58,384 and 90,588

Step by Step Solution

1. Step 1: Write the proportion equation
   58,384 : 90,588 = 90,588 : x
2. Step 2: Convert to fraction form
   58,384/90,588 = 90,588/x
3. Step 3: Cross multiply
   58,384x = 90,588 × 90,588
4. Step 4: Simplify right side
   58,384x = 8,206,185,744
5. Step 5: Solve for x
   x = 8,206,185,744/58,384
6. Step 6: Final answer
   x = 140,555.39