Finding the Third Proportional to 20,467.50 and 42,999

Step by Step Solution

1. Step 1: Write the proportion equation
   20,467.50 : 42,999 = 42,999 : x
2. Step 2: Convert to fraction form
   20,467.50/42,999 = 42,999/x
3. Step 3: Cross multiply
   20,467.50x = 42,999 × 42,999
4. Step 4: Simplify right side
   20,467.50x = 1,848,914,001
5. Step 5: Solve for x
   x = 1,848,914,001/20,467.50
6. Step 6: Final answer
   x = 90,334.14