Finding the Third Proportional to 4,386,382 and 9,781,320

Step by Step Solution

1. Step 1: Write the proportion equation
   4,386,382 : 9,781,320 = 9,781,320 : x
2. Step 2: Convert to fraction form
   4,386,382/9,781,320 = 9,781,320/x
3. Step 3: Cross multiply
   4,386,382x = 9,781,320 × 9,781,320
4. Step 4: Simplify right side
   4,386,382x = 95,674,220,942,400
5. Step 5: Solve for x
   x = 95,674,220,942,400/4,386,382
6. Step 6: Final answer
   x = 21,811,648.17