Finding the Third Proportional to 867,880 and 1,778,042

Step by Step Solution

1. Step 1: Write the proportion equation
   867,880 : 1,778,042 = 1,778,042 : x
2. Step 2: Convert to fraction form
   867,880/1,778,042 = 1,778,042/x
3. Step 3: Cross multiply
   867,880x = 1,778,042 × 1,778,042
4. Step 4: Simplify right side
   867,880x = 3,161,433,353,764
5. Step 5: Solve for x
   x = 3,161,433,353,764/867,880
6. Step 6: Final answer
   x = 3,642,707.92