Finding the Third Proportional to 21,907.50 and 34,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,907.50 : 34,321.50 = 34,321.50 : x
2. Step 2: Convert to fraction form
   21,907.50/34,321.50 = 34,321.50/x
3. Step 3: Cross multiply
   21,907.50x = 34,321.50 × 34,321.50
4. Step 4: Simplify right side
   21,907.50x = 1,177,965,362.25
5. Step 5: Solve for x
   x = 1,177,965,362.25/21,907.50
6. Step 6: Final answer
   x = 53,769.96