Finding the Third Proportional to 2,171,064 and 4,640,910

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,064 : 4,640,910 = 4,640,910 : x
2. Step 2: Convert to fraction form
   2,171,064/4,640,910 = 4,640,910/x
3. Step 3: Cross multiply
   2,171,064x = 4,640,910 × 4,640,910
4. Step 4: Simplify right side
   2,171,064x = 21,538,045,628,100
5. Step 5: Solve for x
   x = 21,538,045,628,100/2,171,064
6. Step 6: Final answer
   x = 9,920,502.40