Finding the Third Proportional to 1,404,288 and 2,118,800

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404,288 : 2,118,800 = 2,118,800 : x
2. Step 2: Convert to fraction form
   1,404,288/2,118,800 = 2,118,800/x
3. Step 3: Cross multiply
   1,404,288x = 2,118,800 × 2,118,800
4. Step 4: Simplify right side
   1,404,288x = 4,489,313,440,000
5. Step 5: Solve for x
   x = 4,489,313,440,000/1,404,288
6. Step 6: Final answer
   x = 3,196,860.93