Finding the Third Proportional to 2,671,158 and 4,138,665

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671,158 : 4,138,665 = 4,138,665 : x
2. Step 2: Convert to fraction form
   2,671,158/4,138,665 = 4,138,665/x
3. Step 3: Cross multiply
   2,671,158x = 4,138,665 × 4,138,665
4. Step 4: Simplify right side
   2,671,158x = 17,128,547,982,225
5. Step 5: Solve for x
   x = 17,128,547,982,225/2,671,158
6. Step 6: Final answer
   x = 6,412,405.40