Finding the Third Proportional to 58,836.38 and 90,021.38

Step by Step Solution

1. Step 1: Write the proportion equation
   58,836.38 : 90,021.38 = 90,021.38 : x
2. Step 2: Convert to fraction form
   58,836.38/90,021.38 = 90,021.38/x
3. Step 3: Cross multiply
   58,836.38x = 90,021.38 × 90,021.38
4. Step 4: Simplify right side
   58,836.38x = 8,103,847,956.89
5. Step 5: Solve for x
   x = 8,103,847,956.89/58,836.38
6. Step 6: Final answer
   x = 137,735.34