Finding the Third Proportional to 872,355 and 1,776,786

Step by Step Solution

1. Step 1: Write the proportion equation
   872,355 : 1,776,786 = 1,776,786 : x
2. Step 2: Convert to fraction form
   872,355/1,776,786 = 1,776,786/x
3. Step 3: Cross multiply
   872,355x = 1,776,786 × 1,776,786
4. Step 4: Simplify right side
   872,355x = 3,156,968,489,796
5. Step 5: Solve for x
   x = 3,156,968,489,796/872,355
6. Step 6: Final answer
   x = 3,618,903.42