Finding the Third Proportional to 1,338,672 and 2,039,385

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338,672 : 2,039,385 = 2,039,385 : x
2. Step 2: Convert to fraction form
   1,338,672/2,039,385 = 2,039,385/x
3. Step 3: Cross multiply
   1,338,672x = 2,039,385 × 2,039,385
4. Step 4: Simplify right side
   1,338,672x = 4,159,091,178,225
5. Step 5: Solve for x
   x = 4,159,091,178,225/1,338,672
6. Step 6: Final answer
   x = 3,106,878.44