Finding the Third Proportional to 874,112 and 1,869,778

Step by Step Solution

1. Step 1: Write the proportion equation
   874,112 : 1,869,778 = 1,869,778 : x
2. Step 2: Convert to fraction form
   874,112/1,869,778 = 1,869,778/x
3. Step 3: Cross multiply
   874,112x = 1,869,778 × 1,869,778
4. Step 4: Simplify right side
   874,112x = 3,496,069,769,284
5. Step 5: Solve for x
   x = 3,496,069,769,284/874,112
6. Step 6: Final answer
   x = 3,999,567.30