Finding the Third Proportional to 713,880 and 1,105,380

Step by Step Solution

1. Step 1: Write the proportion equation
   713,880 : 1,105,380 = 1,105,380 : x
2. Step 2: Convert to fraction form
   713,880/1,105,380 = 1,105,380/x
3. Step 3: Cross multiply
   713,880x = 1,105,380 × 1,105,380
4. Step 4: Simplify right side
   713,880x = 1,221,864,944,400
5. Step 5: Solve for x
   x = 1,221,864,944,400/713,880
6. Step 6: Final answer
   x = 1,711,583.10