Finding the Third Proportional to 21,890.25 and 30,884.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,890.25 : 30,884.63 = 30,884.63 : x
2. Step 2: Convert to fraction form
   21,890.25/30,884.63 = 30,884.63/x
3. Step 3: Cross multiply
   21,890.25x = 30,884.63 × 30,884.63
4. Step 4: Simplify right side
   21,890.25x = 953,860,061.39
5. Step 5: Solve for x
   x = 953,860,061.39/21,890.25
6. Step 6: Final answer
   x = 43,574.65