Finding the Third Proportional to 619,578 and 1,355,796

Step by Step Solution

1. Step 1: Write the proportion equation
   619,578 : 1,355,796 = 1,355,796 : x
2. Step 2: Convert to fraction form
   619,578/1,355,796 = 1,355,796/x
3. Step 3: Cross multiply
   619,578x = 1,355,796 × 1,355,796
4. Step 4: Simplify right side
   619,578x = 1,838,182,793,616
5. Step 5: Solve for x
   x = 1,838,182,793,616/619,578
6. Step 6: Final answer
   x = 2,966,830.32