Finding the Third Proportional to 10,279.13 and 21,287.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,279.13 : 21,287.25 = 21,287.25 : x
2. Step 2: Convert to fraction form
   10,279.13/21,287.25 = 21,287.25/x
3. Step 3: Cross multiply
   10,279.13x = 21,287.25 × 21,287.25
4. Step 4: Simplify right side
   10,279.13x = 453,147,012.56
5. Step 5: Solve for x
   x = 453,147,012.56/10,279.13
6. Step 6: Final answer
   x = 44,084.20