Finding the Third Proportional to 2,257,888 and 3,218,672

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257,888 : 3,218,672 = 3,218,672 : x
2. Step 2: Convert to fraction form
   2,257,888/3,218,672 = 3,218,672/x
3. Step 3: Cross multiply
   2,257,888x = 3,218,672 × 3,218,672
4. Step 4: Simplify right side
   2,257,888x = 10,359,849,443,584
5. Step 5: Solve for x
   x = 10,359,849,443,584/2,257,888
6. Step 6: Final answer
   x = 4,588,292.00