Finding the Third Proportional to 1,891,440 and 4,150,368

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891,440 : 4,150,368 = 4,150,368 : x
2. Step 2: Convert to fraction form
   1,891,440/4,150,368 = 4,150,368/x
3. Step 3: Cross multiply
   1,891,440x = 4,150,368 × 4,150,368
4. Step 4: Simplify right side
   1,891,440x = 17,225,554,535,424
5. Step 5: Solve for x
   x = 17,225,554,535,424/1,891,440
6. Step 6: Final answer
   x = 9,107,111.27