Finding the Third Proportional to 4,921,867 and 7,703,378

Step by Step Solution

1. Step 1: Write the proportion equation
   4,921,867 : 7,703,378 = 7,703,378 : x
2. Step 2: Convert to fraction form
   4,921,867/7,703,378 = 7,703,378/x
3. Step 3: Cross multiply
   4,921,867x = 7,703,378 × 7,703,378
4. Step 4: Simplify right side
   4,921,867x = 59,342,032,610,884
5. Step 5: Solve for x
   x = 59,342,032,610,884/4,921,867
6. Step 6: Final answer
   x = 12,056,813.52