Finding the Third Proportional to 2,147,291 and 4,680,400

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,291 : 4,680,400 = 4,680,400 : x
2. Step 2: Convert to fraction form
   2,147,291/4,680,400 = 4,680,400/x
3. Step 3: Cross multiply
   2,147,291x = 4,680,400 × 4,680,400
4. Step 4: Simplify right side
   2,147,291x = 21,906,144,160,000
5. Step 5: Solve for x
   x = 21,906,144,160,000/2,147,291
6. Step 6: Final answer
   x = 10,201,758.48