Finding the Third Proportional to 1,069,212 and 1,413,306

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069,212 : 1,413,306 = 1,413,306 : x
2. Step 2: Convert to fraction form
   1,069,212/1,413,306 = 1,413,306/x
3. Step 3: Cross multiply
   1,069,212x = 1,413,306 × 1,413,306
4. Step 4: Simplify right side
   1,069,212x = 1,997,433,849,636
5. Step 5: Solve for x
   x = 1,997,433,849,636/1,069,212
6. Step 6: Final answer
   x = 1,868,136.39