Finding the Third Proportional to 20,398.50 and 43,243.88

Step by Step Solution

1. Step 1: Write the proportion equation
   20,398.50 : 43,243.88 = 43,243.88 : x
2. Step 2: Convert to fraction form
   20,398.50/43,243.88 = 43,243.88/x
3. Step 3: Cross multiply
   20,398.50x = 43,243.88 × 43,243.88
4. Step 4: Simplify right side
   20,398.50x = 1,870,032,725.02
5. Step 5: Solve for x
   x = 1,870,032,725.02/20,398.50
6. Step 6: Final answer
   x = 91,675.01