Finding the Third Proportional to 2,287,912 and 3,455,315

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287,912 : 3,455,315 = 3,455,315 : x
2. Step 2: Convert to fraction form
   2,287,912/3,455,315 = 3,455,315/x
3. Step 3: Cross multiply
   2,287,912x = 3,455,315 × 3,455,315
4. Step 4: Simplify right side
   2,287,912x = 11,939,201,749,225
5. Step 5: Solve for x
   x = 11,939,201,749,225/2,287,912
6. Step 6: Final answer
   x = 5,218,383.29