Finding the Third Proportional to 518,956.50 and 1,123,207

Step by Step Solution

1. Step 1: Write the proportion equation
   518,956.50 : 1,123,207 = 1,123,207 : x
2. Step 2: Convert to fraction form
   518,956.50/1,123,207 = 1,123,207/x
3. Step 3: Cross multiply
   518,956.50x = 1,123,207 × 1,123,207
4. Step 4: Simplify right side
   518,956.50x = 1,261,593,964,849
5. Step 5: Solve for x
   x = 1,261,593,964,849/518,956.50
6. Step 6: Final answer
   x = 2,431,020.64