Finding the Third Proportional to 1,188,228 and 1,788,015

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188,228 : 1,788,015 = 1,788,015 : x
2. Step 2: Convert to fraction form
   1,188,228/1,788,015 = 1,788,015/x
3. Step 3: Cross multiply
   1,188,228x = 1,788,015 × 1,788,015
4. Step 4: Simplify right side
   1,188,228x = 3,196,997,640,225
5. Step 5: Solve for x
   x = 3,196,997,640,225/1,188,228
6. Step 6: Final answer
   x = 2,690,559.08