Finding the Third Proportional to 2,124,328 and 4,586,720

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124,328 : 4,586,720 = 4,586,720 : x
2. Step 2: Convert to fraction form
   2,124,328/4,586,720 = 4,586,720/x
3. Step 3: Cross multiply
   2,124,328x = 4,586,720 × 4,586,720
4. Step 4: Simplify right side
   2,124,328x = 21,038,000,358,400
5. Step 5: Solve for x
   x = 21,038,000,358,400/2,124,328
6. Step 6: Final answer
   x = 9,903,367.26