Finding the Third Proportional to 21,808.50 and 34,590

Step by Step Solution

1. Step 1: Write the proportion equation
   21,808.50 : 34,590 = 34,590 : x
2. Step 2: Convert to fraction form
   21,808.50/34,590 = 34,590/x
3. Step 3: Cross multiply
   21,808.50x = 34,590 × 34,590
4. Step 4: Simplify right side
   21,808.50x = 1,196,468,100
5. Step 5: Solve for x
   x = 1,196,468,100/21,808.50
6. Step 6: Final answer
   x = 54,862.47