Finding the Third Proportional to 4,778,901 and 7,078,725

Step by Step Solution

1. Step 1: Write the proportion equation
   4,778,901 : 7,078,725 = 7,078,725 : x
2. Step 2: Convert to fraction form
   4,778,901/7,078,725 = 7,078,725/x
3. Step 3: Cross multiply
   4,778,901x = 7,078,725 × 7,078,725
4. Step 4: Simplify right side
   4,778,901x = 50,108,347,625,625
5. Step 5: Solve for x
   x = 50,108,347,625,625/4,778,901
6. Step 6: Final answer
   x = 10,485,328.66