Finding the Third Proportional to 74,985.75 and 162,000

Step by Step Solution

1. Step 1: Write the proportion equation
   74,985.75 : 162,000 = 162,000 : x
2. Step 2: Convert to fraction form
   74,985.75/162,000 = 162,000/x
3. Step 3: Cross multiply
   74,985.75x = 162,000 × 162,000
4. Step 4: Simplify right side
   74,985.75x = 26,244,000,000
5. Step 5: Solve for x
   x = 26,244,000,000/74,985.75
6. Step 6: Final answer
   x = 349,986.50