Finding the Third Proportional to 2,287,916 and 3,455,321

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287,916 : 3,455,321 = 3,455,321 : x
2. Step 2: Convert to fraction form
   2,287,916/3,455,321 = 3,455,321/x
3. Step 3: Cross multiply
   2,287,916x = 3,455,321 × 3,455,321
4. Step 4: Simplify right side
   2,287,916x = 11,939,243,213,041
5. Step 5: Solve for x
   x = 11,939,243,213,041/2,287,916
6. Step 6: Final answer
   x = 5,218,392.29