Finding the Third Proportional to 439,134 and 979,238.63

Step by Step Solution

1. Step 1: Write the proportion equation
   439,134 : 979,238.63 = 979,238.63 : x
2. Step 2: Convert to fraction form
   439,134/979,238.63 = 979,238.63/x
3. Step 3: Cross multiply
   439,134x = 979,238.63 × 979,238.63
4. Step 4: Simplify right side
   439,134x = 958,908,284,691.89
5. Step 5: Solve for x
   x = 958,908,284,691.89/439,134
6. Step 6: Final answer
   x = 2,183,634.80