Finding the Third Proportional to 94,905 and 142,978

Step by Step Solution

1. Step 1: Write the proportion equation
   94,905 : 142,978 = 142,978 : x
2. Step 2: Convert to fraction form
   94,905/142,978 = 142,978/x
3. Step 3: Cross multiply
   94,905x = 142,978 × 142,978
4. Step 4: Simplify right side
   94,905x = 20,442,708,484
5. Step 5: Solve for x
   x = 20,442,708,484/94,905
6. Step 6: Final answer
   x = 215,401.81