Finding the Third Proportional to 2,121,804 and 4,341,654

Step by Step Solution

1. Step 1: Write the proportion equation
   2,121,804 : 4,341,654 = 4,341,654 : x
2. Step 2: Convert to fraction form
   2,121,804/4,341,654 = 4,341,654/x
3. Step 3: Cross multiply
   2,121,804x = 4,341,654 × 4,341,654
4. Step 4: Simplify right side
   2,121,804x = 18,849,959,455,716
5. Step 5: Solve for x
   x = 18,849,959,455,716/2,121,804
6. Step 6: Final answer
   x = 8,883,930.59