Finding the Third Proportional to 1,021,633 and 2,149,129

Step by Step Solution

1. Step 1: Write the proportion equation
   1,021,633 : 2,149,129 = 2,149,129 : x
2. Step 2: Convert to fraction form
   1,021,633/2,149,129 = 2,149,129/x
3. Step 3: Cross multiply
   1,021,633x = 2,149,129 × 2,149,129
4. Step 4: Simplify right side
   1,021,633x = 4,618,755,458,641
5. Step 5: Solve for x
   x = 4,618,755,458,641/1,021,633
6. Step 6: Final answer
   x = 4,520,953.67