Finding the Third Proportional to 17,988 and 36,840

Step by Step Solution

1. Step 1: Write the proportion equation
   17,988 : 36,840 = 36,840 : x
2. Step 2: Convert to fraction form
   17,988/36,840 = 36,840/x
3. Step 3: Cross multiply
   17,988x = 36,840 × 36,840
4. Step 4: Simplify right side
   17,988x = 1,357,185,600
5. Step 5: Solve for x
   x = 1,357,185,600/17,988
6. Step 6: Final answer
   x = 75,449.50