Finding the Third Proportional to 21,900 and 46,712

Step by Step Solution

1. Step 1: Write the proportion equation
   21,900 : 46,712 = 46,712 : x
2. Step 2: Convert to fraction form
   21,900/46,712 = 46,712/x
3. Step 3: Cross multiply
   21,900x = 46,712 × 46,712
4. Step 4: Simplify right side
   21,900x = 2,182,010,944
5. Step 5: Solve for x
   x = 2,182,010,944/21,900
6. Step 6: Final answer
   x = 99,635.20