Finding the Third Proportional to 4,486,790 and 9,785,606

Step by Step Solution

1. Step 1: Write the proportion equation
   4,486,790 : 9,785,606 = 9,785,606 : x
2. Step 2: Convert to fraction form
   4,486,790/9,785,606 = 9,785,606/x
3. Step 3: Cross multiply
   4,486,790x = 9,785,606 × 9,785,606
4. Step 4: Simplify right side
   4,486,790x = 95,758,084,787,236
5. Step 5: Solve for x
   x = 95,758,084,787,236/4,486,790
6. Step 6: Final answer
   x = 21,342,225.69