Finding the Third Proportional to 4,921,869 and 7,703,380

Step by Step Solution

1. Step 1: Write the proportion equation
   4,921,869 : 7,703,380 = 7,703,380 : x
2. Step 2: Convert to fraction form
   4,921,869/7,703,380 = 7,703,380/x
3. Step 3: Cross multiply
   4,921,869x = 7,703,380 × 7,703,380
4. Step 4: Simplify right side
   4,921,869x = 59,342,063,424,400
5. Step 5: Solve for x
   x = 59,342,063,424,400/4,921,869
6. Step 6: Final answer
   x = 12,056,814.89