Finding the Third Proportional to 1,720,800 and 2,673,240

Step by Step Solution

1. Step 1: Write the proportion equation
   1,720,800 : 2,673,240 = 2,673,240 : x
2. Step 2: Convert to fraction form
   1,720,800/2,673,240 = 2,673,240/x
3. Step 3: Cross multiply
   1,720,800x = 2,673,240 × 2,673,240
4. Step 4: Simplify right side
   1,720,800x = 7,146,212,097,600
5. Step 5: Solve for x
   x = 7,146,212,097,600/1,720,800
6. Step 6: Final answer
   x = 4,152,842.92