Finding the Third Proportional to 1,567,378 and 2,207,209

Step by Step Solution

1. Step 1: Write the proportion equation
   1,567,378 : 2,207,209 = 2,207,209 : x
2. Step 2: Convert to fraction form
   1,567,378/2,207,209 = 2,207,209/x
3. Step 3: Cross multiply
   1,567,378x = 2,207,209 × 2,207,209
4. Step 4: Simplify right side
   1,567,378x = 4,871,771,569,681
5. Step 5: Solve for x
   x = 4,871,771,569,681/1,567,378
6. Step 6: Final answer
   x = 3,108,230.16