Finding the Third Proportional to 17,921 and 27,805.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,921 : 27,805.50 = 27,805.50 : x
2. Step 2: Convert to fraction form
   17,921/27,805.50 = 27,805.50/x
3. Step 3: Cross multiply
   17,921x = 27,805.50 × 27,805.50
4. Step 4: Simplify right side
   17,921x = 773,145,830.25
5. Step 5: Solve for x
   x = 773,145,830.25/17,921
6. Step 6: Final answer
   x = 43,141.89