Finding the Third Proportional to 2,906,174 and 3,989,385

Step by Step Solution

1. Step 1: Write the proportion equation
   2,906,174 : 3,989,385 = 3,989,385 : x
2. Step 2: Convert to fraction form
   2,906,174/3,989,385 = 3,989,385/x
3. Step 3: Cross multiply
   2,906,174x = 3,989,385 × 3,989,385
4. Step 4: Simplify right side
   2,906,174x = 15,915,192,678,225
5. Step 5: Solve for x
   x = 15,915,192,678,225/2,906,174
6. Step 6: Final answer
   x = 5,476,338.54