Finding the Third Proportional to 70,577 and 154,978

Step by Step Solution

1. Step 1: Write the proportion equation
   70,577 : 154,978 = 154,978 : x
2. Step 2: Convert to fraction form
   70,577/154,978 = 154,978/x
3. Step 3: Cross multiply
   70,577x = 154,978 × 154,978
4. Step 4: Simplify right side
   70,577x = 24,018,180,484
5. Step 5: Solve for x
   x = 24,018,180,484/70,577
6. Step 6: Final answer
   x = 340,311.72