Finding the Third Proportional to 512,599.50 and 1,123,920

Step by Step Solution

1. Step 1: Write the proportion equation
   512,599.50 : 1,123,920 = 1,123,920 : x
2. Step 2: Convert to fraction form
   512,599.50/1,123,920 = 1,123,920/x
3. Step 3: Cross multiply
   512,599.50x = 1,123,920 × 1,123,920
4. Step 4: Simplify right side
   512,599.50x = 1,263,196,166,400
5. Step 5: Solve for x
   x = 1,263,196,166,400/512,599.50
6. Step 6: Final answer
   x = 2,464,294.57