Finding the Third Proportional to 17,172 and 27,140.91

Step by Step Solution

1. Step 1: Write the proportion equation
   17,172 : 27,140.91 = 27,140.91 : x
2. Step 2: Convert to fraction form
   17,172/27,140.91 = 27,140.91/x
3. Step 3: Cross multiply
   17,172x = 27,140.91 × 27,140.91
4. Step 4: Simplify right side
   17,172x = 736,628,792.07
5. Step 5: Solve for x
   x = 736,628,792.07/17,172
6. Step 6: Final answer
   x = 42,897.09