Finding the Third Proportional to 17,690 and 37,300

Step by Step Solution

1. Step 1: Write the proportion equation
   17,690 : 37,300 = 37,300 : x
2. Step 2: Convert to fraction form
   17,690/37,300 = 37,300/x
3. Step 3: Cross multiply
   17,690x = 37,300 × 37,300
4. Step 4: Simplify right side
   17,690x = 1,391,290,000
5. Step 5: Solve for x
   x = 1,391,290,000/17,690
6. Step 6: Final answer
   x = 78,648.39