Finding the Third Proportional to 21,206.25 and 31,160.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,206.25 : 31,160.25 = 31,160.25 : x
2. Step 2: Convert to fraction form
   21,206.25/31,160.25 = 31,160.25/x
3. Step 3: Cross multiply
   21,206.25x = 31,160.25 × 31,160.25
4. Step 4: Simplify right side
   21,206.25x = 970,961,180.06
5. Step 5: Solve for x
   x = 970,961,180.06/21,206.25
6. Step 6: Final answer
   x = 45,786.56