Finding the Third Proportional to 21,510 and 34,653

Step by Step Solution

1. Step 1: Write the proportion equation
   21,510 : 34,653 = 34,653 : x
2. Step 2: Convert to fraction form
   21,510/34,653 = 34,653/x
3. Step 3: Cross multiply
   21,510x = 34,653 × 34,653
4. Step 4: Simplify right side
   21,510x = 1,200,830,409
5. Step 5: Solve for x
   x = 1,200,830,409/21,510
6. Step 6: Final answer
   x = 55,826.61