Finding the Third Proportional to 38,990 and 58,836

Step by Step Solution

1. Step 1: Write the proportion equation
   38,990 : 58,836 = 58,836 : x
2. Step 2: Convert to fraction form
   38,990/58,836 = 58,836/x
3. Step 3: Cross multiply
   38,990x = 58,836 × 58,836
4. Step 4: Simplify right side
   38,990x = 3,461,674,896
5. Step 5: Solve for x
   x = 3,461,674,896/38,990
6. Step 6: Final answer
   x = 88,783.66