Finding the Third Proportional to 872,352 and 1,776,780

Step by Step Solution

1. Step 1: Write the proportion equation
   872,352 : 1,776,780 = 1,776,780 : x
2. Step 2: Convert to fraction form
   872,352/1,776,780 = 1,776,780/x
3. Step 3: Cross multiply
   872,352x = 1,776,780 × 1,776,780
4. Step 4: Simplify right side
   872,352x = 3,156,947,168,400
5. Step 5: Solve for x
   x = 3,156,947,168,400/872,352
6. Step 6: Final answer
   x = 3,618,891.42