Finding the Third Proportional to 21,618.56 and 27,623.53

Step by Step Solution

1. Step 1: Write the proportion equation
   21,618.56 : 27,623.53 = 27,623.53 : x
2. Step 2: Convert to fraction form
   21,618.56/27,623.53 = 27,623.53/x
3. Step 3: Cross multiply
   21,618.56x = 27,623.53 × 27,623.53
4. Step 4: Simplify right side
   21,618.56x = 763,059,478.72
5. Step 5: Solve for x
   x = 763,059,478.72/21,618.56
6. Step 6: Final answer
   x = 35,296.49