Finding the Third Proportional to 59,978 and 129,037

Step by Step Solution

1. Step 1: Write the proportion equation
   59,978 : 129,037 = 129,037 : x
2. Step 2: Convert to fraction form
   59,978/129,037 = 129,037/x
3. Step 3: Cross multiply
   59,978x = 129,037 × 129,037
4. Step 4: Simplify right side
   59,978x = 16,650,547,369
5. Step 5: Solve for x
   x = 16,650,547,369/59,978
6. Step 6: Final answer
   x = 277,610.91