Finding the Third Proportional to 9,902.25 and 21,512.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,902.25 : 21,512.25 = 21,512.25 : x
2. Step 2: Convert to fraction form
   9,902.25/21,512.25 = 21,512.25/x
3. Step 3: Cross multiply
   9,902.25x = 21,512.25 × 21,512.25
4. Step 4: Simplify right side
   9,902.25x = 462,776,900.06
5. Step 5: Solve for x
   x = 462,776,900.06/9,902.25
6. Step 6: Final answer
   x = 46,734.52