Finding the Third Proportional to 10,186.59 and 21,479.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,186.59 : 21,479.34 = 21,479.34 : x
2. Step 2: Convert to fraction form
   10,186.59/21,479.34 = 21,479.34/x
3. Step 3: Cross multiply
   10,186.59x = 21,479.34 × 21,479.34
4. Step 4: Simplify right side
   10,186.59x = 461,362,207.93
5. Step 5: Solve for x
   x = 461,362,207.93/10,186.59
6. Step 6: Final answer
   x = 45,291.12