Finding the Third Proportional to 867,546 and 1,296,216

Step by Step Solution

1. Step 1: Write the proportion equation
   867,546 : 1,296,216 = 1,296,216 : x
2. Step 2: Convert to fraction form
   867,546/1,296,216 = 1,296,216/x
3. Step 3: Cross multiply
   867,546x = 1,296,216 × 1,296,216
4. Step 4: Simplify right side
   867,546x = 1,680,175,918,656
5. Step 5: Solve for x
   x = 1,680,175,918,656/867,546
6. Step 6: Final answer
   x = 1,936,699.52