Finding the Third Proportional to 19,900 and 28,292

Step by Step Solution

1. Step 1: Write the proportion equation
   19,900 : 28,292 = 28,292 : x
2. Step 2: Convert to fraction form
   19,900/28,292 = 28,292/x
3. Step 3: Cross multiply
   19,900x = 28,292 × 28,292
4. Step 4: Simplify right side
   19,900x = 800,437,264
5. Step 5: Solve for x
   x = 800,437,264/19,900
6. Step 6: Final answer
   x = 40,222.98