Finding the Third Proportional to 1,582,720 and 3,221,376

Step by Step Solution

1. Step 1: Write the proportion equation
   1,582,720 : 3,221,376 = 3,221,376 : x
2. Step 2: Convert to fraction form
   1,582,720/3,221,376 = 3,221,376/x
3. Step 3: Cross multiply
   1,582,720x = 3,221,376 × 3,221,376
4. Step 4: Simplify right side
   1,582,720x = 10,377,263,333,376
5. Step 5: Solve for x
   x = 10,377,263,333,376/1,582,720
6. Step 6: Final answer
   x = 6,556,600.87