Finding the Third Proportional to 916,236 and 1,398,046

Step by Step Solution

1. Step 1: Write the proportion equation
   916,236 : 1,398,046 = 1,398,046 : x
2. Step 2: Convert to fraction form
   916,236/1,398,046 = 1,398,046/x
3. Step 3: Cross multiply
   916,236x = 1,398,046 × 1,398,046
4. Step 4: Simplify right side
   916,236x = 1,954,532,618,116
5. Step 5: Solve for x
   x = 1,954,532,618,116/916,236
6. Step 6: Final answer
   x = 2,133,219.63