Finding the Third Proportional to 4,386,384 and 9,781,336

Step by Step Solution

1. Step 1: Write the proportion equation
   4,386,384 : 9,781,336 = 9,781,336 : x
2. Step 2: Convert to fraction form
   4,386,384/9,781,336 = 9,781,336/x
3. Step 3: Cross multiply
   4,386,384x = 9,781,336 × 9,781,336
4. Step 4: Simplify right side
   4,386,384x = 95,674,533,944,896
5. Step 5: Solve for x
   x = 95,674,533,944,896/4,386,384
6. Step 6: Final answer
   x = 21,811,709.59