Finding the Third Proportional to 35,919.38 and 76,999.69

Step by Step Solution

1. Step 1: Write the proportion equation
   35,919.38 : 76,999.69 = 76,999.69 : x
2. Step 2: Convert to fraction form
   35,919.38/76,999.69 = 76,999.69/x
3. Step 3: Cross multiply
   35,919.38x = 76,999.69 × 76,999.69
4. Step 4: Simplify right side
   35,919.38x = 5,928,951,875.10
5. Step 5: Solve for x
   x = 5,928,951,875.10/35,919.38
6. Step 6: Final answer
   x = 165,062.78