Finding the Third Proportional to 911,578 and 1,963,340

Step by Step Solution

1. Step 1: Write the proportion equation
   911,578 : 1,963,340 = 1,963,340 : x
2. Step 2: Convert to fraction form
   911,578/1,963,340 = 1,963,340/x
3. Step 3: Cross multiply
   911,578x = 1,963,340 × 1,963,340
4. Step 4: Simplify right side
   911,578x = 3,854,703,955,600
5. Step 5: Solve for x
   x = 3,854,703,955,600/911,578
6. Step 6: Final answer
   x = 4,228,605.73