Finding the Third Proportional to 21,979.50 and 34,454.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,979.50 : 34,454.25 = 34,454.25 : x
2. Step 2: Convert to fraction form
   21,979.50/34,454.25 = 34,454.25/x
3. Step 3: Cross multiply
   21,979.50x = 34,454.25 × 34,454.25
4. Step 4: Simplify right side
   21,979.50x = 1,187,095,343.06
5. Step 5: Solve for x
   x = 1,187,095,343.06/21,979.50
6. Step 6: Final answer
   x = 54,009.21