Finding the Third Proportional to 1,569,400 and 2,221,315

Step by Step Solution

1. Step 1: Write the proportion equation
   1,569,400 : 2,221,315 = 2,221,315 : x
2. Step 2: Convert to fraction form
   1,569,400/2,221,315 = 2,221,315/x
3. Step 3: Cross multiply
   1,569,400x = 2,221,315 × 2,221,315
4. Step 4: Simplify right side
   1,569,400x = 4,934,240,329,225
5. Step 5: Solve for x
   x = 4,934,240,329,225/1,569,400
6. Step 6: Final answer
   x = 3,144,029.78