Finding the Third Proportional to 1,239,620 and 1,915,494

Step by Step Solution

1. Step 1: Write the proportion equation
   1,239,620 : 1,915,494 = 1,915,494 : x
2. Step 2: Convert to fraction form
   1,239,620/1,915,494 = 1,915,494/x
3. Step 3: Cross multiply
   1,239,620x = 1,915,494 × 1,915,494
4. Step 4: Simplify right side
   1,239,620x = 3,669,117,264,036
5. Step 5: Solve for x
   x = 3,669,117,264,036/1,239,620
6. Step 6: Final answer
   x = 2,959,872.59