Finding the Third Proportional to 2,129,654 and 4,618,633

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,654 : 4,618,633 = 4,618,633 : x
2. Step 2: Convert to fraction form
   2,129,654/4,618,633 = 4,618,633/x
3. Step 3: Cross multiply
   2,129,654x = 4,618,633 × 4,618,633
4. Step 4: Simplify right side
   2,129,654x = 21,331,770,788,689
5. Step 5: Solve for x
   x = 21,331,770,788,689/2,129,654
6. Step 6: Final answer
   x = 10,016,542.96