Finding the Third Proportional to 21,718.13 and 43,314.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,718.13 : 43,314.75 = 43,314.75 : x
2. Step 2: Convert to fraction form
   21,718.13/43,314.75 = 43,314.75/x
3. Step 3: Cross multiply
   21,718.13x = 43,314.75 × 43,314.75
4. Step 4: Simplify right side
   21,718.13x = 1,876,167,567.56
5. Step 5: Solve for x
   x = 1,876,167,567.56/21,718.13
6. Step 6: Final answer
   x = 86,387.18