Finding the Third Proportional to 1,567,391 and 2,207,228

Step by Step Solution

1. Step 1: Write the proportion equation
   1,567,391 : 2,207,228 = 2,207,228 : x
2. Step 2: Convert to fraction form
   1,567,391/2,207,228 = 2,207,228/x
3. Step 3: Cross multiply
   1,567,391x = 2,207,228 × 2,207,228
4. Step 4: Simplify right side
   1,567,391x = 4,871,855,443,984
5. Step 5: Solve for x
   x = 4,871,855,443,984/1,567,391
6. Step 6: Final answer
   x = 3,108,257.89