Finding the Third Proportional to 17,670 and 27,558

Step by Step Solution

1. Step 1: Write the proportion equation
   17,670 : 27,558 = 27,558 : x
2. Step 2: Convert to fraction form
   17,670/27,558 = 27,558/x
3. Step 3: Cross multiply
   17,670x = 27,558 × 27,558
4. Step 4: Simplify right side
   17,670x = 759,443,364
5. Step 5: Solve for x
   x = 759,443,364/17,670
6. Step 6: Final answer
   x = 42,979.25