Finding the Third Proportional to 31,401 and 69,000

Step by Step Solution

1. Step 1: Write the proportion equation
   31,401 : 69,000 = 69,000 : x
2. Step 2: Convert to fraction form
   31,401/69,000 = 69,000/x
3. Step 3: Cross multiply
   31,401x = 69,000 × 69,000
4. Step 4: Simplify right side
   31,401x = 4,761,000,000
5. Step 5: Solve for x
   x = 4,761,000,000/31,401
6. Step 6: Final answer
   x = 151,619.38