Finding the Third Proportional to 3,900,890 and 5,176,065

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900,890 : 5,176,065 = 5,176,065 : x
2. Step 2: Convert to fraction form
   3,900,890/5,176,065 = 5,176,065/x
3. Step 3: Cross multiply
   3,900,890x = 5,176,065 × 5,176,065
4. Step 4: Simplify right side
   3,900,890x = 26,791,648,884,225
5. Step 5: Solve for x
   x = 26,791,648,884,225/3,900,890
6. Step 6: Final answer
   x = 6,868,086.23