Finding the Third Proportional to 648,864 and 867,942

Step by Step Solution

1. Step 1: Write the proportion equation
   648,864 : 867,942 = 867,942 : x
2. Step 2: Convert to fraction form
   648,864/867,942 = 867,942/x
3. Step 3: Cross multiply
   648,864x = 867,942 × 867,942
4. Step 4: Simplify right side
   648,864x = 753,323,315,364
5. Step 5: Solve for x
   x = 753,323,315,364/648,864
6. Step 6: Final answer
   x = 1,160,988.00