Finding the Third Proportional to 2,145,936 and 4,640,340

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,936 : 4,640,340 = 4,640,340 : x
2. Step 2: Convert to fraction form
   2,145,936/4,640,340 = 4,640,340/x
3. Step 3: Cross multiply
   2,145,936x = 4,640,340 × 4,640,340
4. Step 4: Simplify right side
   2,145,936x = 21,532,755,315,600
5. Step 5: Solve for x
   x = 21,532,755,315,600/2,145,936
6. Step 6: Final answer
   x = 10,034,202.01