Finding the Third Proportional to 1,306,320 and 1,979,169

Step by Step Solution

1. Step 1: Write the proportion equation
   1,306,320 : 1,979,169 = 1,979,169 : x
2. Step 2: Convert to fraction form
   1,306,320/1,979,169 = 1,979,169/x
3. Step 3: Cross multiply
   1,306,320x = 1,979,169 × 1,979,169
4. Step 4: Simplify right side
   1,306,320x = 3,917,109,930,561
5. Step 5: Solve for x
   x = 3,917,109,930,561/1,306,320
6. Step 6: Final answer
   x = 2,998,583.75