Finding the Third Proportional to 5,891.70 and 12,389.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,891.70 : 12,389.31 = 12,389.31 : x
2. Step 2: Convert to fraction form
   5,891.70/12,389.31 = 12,389.31/x
3. Step 3: Cross multiply
   5,891.70x = 12,389.31 × 12,389.31
4. Step 4: Simplify right side
   5,891.70x = 153,494,967.43
5. Step 5: Solve for x
   x = 153,494,967.43/5,891.70
6. Step 6: Final answer
   x = 26,052.77