Finding the Third Proportional to 2,138,818 and 4,755,842

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,818 : 4,755,842 = 4,755,842 : x
2. Step 2: Convert to fraction form
   2,138,818/4,755,842 = 4,755,842/x
3. Step 3: Cross multiply
   2,138,818x = 4,755,842 × 4,755,842
4. Step 4: Simplify right side
   2,138,818x = 22,618,033,128,964
5. Step 5: Solve for x
   x = 22,618,033,128,964/2,138,818
6. Step 6: Final answer
   x = 10,575,015.33