Finding the Third Proportional to 847,738 and 1,188,278

Step by Step Solution

1. Step 1: Write the proportion equation
   847,738 : 1,188,278 = 1,188,278 : x
2. Step 2: Convert to fraction form
   847,738/1,188,278 = 1,188,278/x
3. Step 3: Cross multiply
   847,738x = 1,188,278 × 1,188,278
4. Step 4: Simplify right side
   847,738x = 1,412,004,605,284
5. Step 5: Solve for x
   x = 1,412,004,605,284/847,738
6. Step 6: Final answer
   x = 1,665,614.38