Finding the Third Proportional to 3,861,390 and 5,077,725

Step by Step Solution

1. Step 1: Write the proportion equation
   3,861,390 : 5,077,725 = 5,077,725 : x
2. Step 2: Convert to fraction form
   3,861,390/5,077,725 = 5,077,725/x
3. Step 3: Cross multiply
   3,861,390x = 5,077,725 × 5,077,725
4. Step 4: Simplify right side
   3,861,390x = 25,783,291,175,625
5. Step 5: Solve for x
   x = 25,783,291,175,625/3,861,390
6. Step 6: Final answer
   x = 6,677,204.63