Finding the Third Proportional to 1,350,436 and 2,138,406

Step by Step Solution

1. Step 1: Write the proportion equation
   1,350,436 : 2,138,406 = 2,138,406 : x
2. Step 2: Convert to fraction form
   1,350,436/2,138,406 = 2,138,406/x
3. Step 3: Cross multiply
   1,350,436x = 2,138,406 × 2,138,406
4. Step 4: Simplify right side
   1,350,436x = 4,572,780,220,836
5. Step 5: Solve for x
   x = 4,572,780,220,836/1,350,436
6. Step 6: Final answer
   x = 3,386,151.01