Finding the Third Proportional to 21,090 and 32,913

Step by Step Solution

1. Step 1: Write the proportion equation
   21,090 : 32,913 = 32,913 : x
2. Step 2: Convert to fraction form
   21,090/32,913 = 32,913/x
3. Step 3: Cross multiply
   21,090x = 32,913 × 32,913
4. Step 4: Simplify right side
   21,090x = 1,083,265,569
5. Step 5: Solve for x
   x = 1,083,265,569/21,090
6. Step 6: Final answer
   x = 51,363.94