Finding the Third Proportional to 72,912 and 159,000

Step by Step Solution

1. Step 1: Write the proportion equation
   72,912 : 159,000 = 159,000 : x
2. Step 2: Convert to fraction form
   72,912/159,000 = 159,000/x
3. Step 3: Cross multiply
   72,912x = 159,000 × 159,000
4. Step 4: Simplify right side
   72,912x = 25,281,000,000
5. Step 5: Solve for x
   x = 25,281,000,000/72,912
6. Step 6: Final answer
   x = 346,733.05