Finding the Third Proportional to 1,223,976 and 1,720,572

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,976 : 1,720,572 = 1,720,572 : x
2. Step 2: Convert to fraction form
   1,223,976/1,720,572 = 1,720,572/x
3. Step 3: Cross multiply
   1,223,976x = 1,720,572 × 1,720,572
4. Step 4: Simplify right side
   1,223,976x = 2,960,368,007,184
5. Step 5: Solve for x
   x = 2,960,368,007,184/1,223,976
6. Step 6: Final answer
   x = 2,418,648.74