Finding the Third Proportional to 1,069,222 and 1,413,320

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069,222 : 1,413,320 = 1,413,320 : x
2. Step 2: Convert to fraction form
   1,069,222/1,413,320 = 1,413,320/x
3. Step 3: Cross multiply
   1,069,222x = 1,413,320 × 1,413,320
4. Step 4: Simplify right side
   1,069,222x = 1,997,473,422,400
5. Step 5: Solve for x
   x = 1,997,473,422,400/1,069,222
6. Step 6: Final answer
   x = 1,868,155.93