Finding the Third Proportional to 1,569,396 and 2,221,309

Step by Step Solution

1. Step 1: Write the proportion equation
   1,569,396 : 2,221,309 = 2,221,309 : x
2. Step 2: Convert to fraction form
   1,569,396/2,221,309 = 2,221,309/x
3. Step 3: Cross multiply
   1,569,396x = 2,221,309 × 2,221,309
4. Step 4: Simplify right side
   1,569,396x = 4,934,213,673,481
5. Step 5: Solve for x
   x = 4,934,213,673,481/1,569,396
6. Step 6: Final answer
   x = 3,144,020.80