Finding the Third Proportional to 19,980.42 and 43,073.65

Step by Step Solution

1. Step 1: Write the proportion equation
   19,980.42 : 43,073.65 = 43,073.65 : x
2. Step 2: Convert to fraction form
   19,980.42/43,073.65 = 43,073.65/x
3. Step 3: Cross multiply
   19,980.42x = 43,073.65 × 43,073.65
4. Step 4: Simplify right side
   19,980.42x = 1,855,339,189.72
5. Step 5: Solve for x
   x = 1,855,339,189.72/19,980.42
6. Step 6: Final answer
   x = 92,857.86