Finding the Third Proportional to 17,907.75 and 27,720.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,907.75 : 27,720.56 = 27,720.56 : x
2. Step 2: Convert to fraction form
   17,907.75/27,720.56 = 27,720.56/x
3. Step 3: Cross multiply
   17,907.75x = 27,720.56 × 27,720.56
4. Step 4: Simplify right side
   17,907.75x = 768,429,585.32
5. Step 5: Solve for x
   x = 768,429,585.32/17,907.75
6. Step 6: Final answer
   x = 42,910.45