Finding the Third Proportional to 518,700 and 1,073,400

Step by Step Solution

1. Step 1: Write the proportion equation
   518,700 : 1,073,400 = 1,073,400 : x
2. Step 2: Convert to fraction form
   518,700/1,073,400 = 1,073,400/x
3. Step 3: Cross multiply
   518,700x = 1,073,400 × 1,073,400
4. Step 4: Simplify right side
   518,700x = 1,152,187,560,000
5. Step 5: Solve for x
   x = 1,152,187,560,000/518,700
6. Step 6: Final answer
   x = 2,221,298.55