Finding the Third Proportional to 10,210.13 and 20,852.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,210.13 : 20,852.25 = 20,852.25 : x
2. Step 2: Convert to fraction form
   10,210.13/20,852.25 = 20,852.25/x
3. Step 3: Cross multiply
   10,210.13x = 20,852.25 × 20,852.25
4. Step 4: Simplify right side
   10,210.13x = 434,816,330.06
5. Step 5: Solve for x
   x = 434,816,330.06/10,210.13
6. Step 6: Final answer
   x = 42,586.78