Finding the Third Proportional to 518,497 and 1,078,380

Step by Step Solution

1. Step 1: Write the proportion equation
   518,497 : 1,078,380 = 1,078,380 : x
2. Step 2: Convert to fraction form
   518,497/1,078,380 = 1,078,380/x
3. Step 3: Cross multiply
   518,497x = 1,078,380 × 1,078,380
4. Step 4: Simplify right side
   518,497x = 1,162,903,424,400
5. Step 5: Solve for x
   x = 1,162,903,424,400/518,497
6. Step 6: Final answer
   x = 2,242,835.40