Finding the Third Proportional to 16,578 and 22,221

Step by Step Solution

1. Step 1: Write the proportion equation
   16,578 : 22,221 = 22,221 : x
2. Step 2: Convert to fraction form
   16,578/22,221 = 22,221/x
3. Step 3: Cross multiply
   16,578x = 22,221 × 22,221
4. Step 4: Simplify right side
   16,578x = 493,772,841
5. Step 5: Solve for x
   x = 493,772,841/16,578
6. Step 6: Final answer
   x = 29,784.83