Finding the Third Proportional to 2,906,166 and 3,989,376

Step by Step Solution

1. Step 1: Write the proportion equation
   2,906,166 : 3,989,376 = 3,989,376 : x
2. Step 2: Convert to fraction form
   2,906,166/3,989,376 = 3,989,376/x
3. Step 3: Cross multiply
   2,906,166x = 3,989,376 × 3,989,376
4. Step 4: Simplify right side
   2,906,166x = 15,915,120,869,376
5. Step 5: Solve for x
   x = 15,915,120,869,376/2,906,166
6. Step 6: Final answer
   x = 5,476,328.91