Finding the Third Proportional to 2,147,289 and 4,680,396

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,289 : 4,680,396 = 4,680,396 : x
2. Step 2: Convert to fraction form
   2,147,289/4,680,396 = 4,680,396/x
3. Step 3: Cross multiply
   2,147,289x = 4,680,396 × 4,680,396
4. Step 4: Simplify right side
   2,147,289x = 21,906,106,716,816
5. Step 5: Solve for x
   x = 21,906,106,716,816/2,147,289
6. Step 6: Final answer
   x = 10,201,750.54