Finding the Third Proportional to 1,992,640 and 3,172,230

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992,640 : 3,172,230 = 3,172,230 : x
2. Step 2: Convert to fraction form
   1,992,640/3,172,230 = 3,172,230/x
3. Step 3: Cross multiply
   1,992,640x = 3,172,230 × 3,172,230
4. Step 4: Simplify right side
   1,992,640x = 10,063,043,172,900
5. Step 5: Solve for x
   x = 10,063,043,172,900/1,992,640
6. Step 6: Final answer
   x = 5,050,105.98