Finding the Third Proportional to 1,993,830 and 4,386,396

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993,830 : 4,386,396 = 4,386,396 : x
2. Step 2: Convert to fraction form
   1,993,830/4,386,396 = 4,386,396/x
3. Step 3: Cross multiply
   1,993,830x = 4,386,396 × 4,386,396
4. Step 4: Simplify right side
   1,993,830x = 19,240,469,868,816
5. Step 5: Solve for x
   x = 19,240,469,868,816/1,993,830
6. Step 6: Final answer
   x = 9,650,005.20