Finding the Third Proportional to 514,812 and 787,540.50

Step by Step Solution

1. Step 1: Write the proportion equation
   514,812 : 787,540.50 = 787,540.50 : x
2. Step 2: Convert to fraction form
   514,812/787,540.50 = 787,540.50/x
3. Step 3: Cross multiply
   514,812x = 787,540.50 × 787,540.50
4. Step 4: Simplify right side
   514,812x = 620,220,039,140.25
5. Step 5: Solve for x
   x = 620,220,039,140.25/514,812
6. Step 6: Final answer
   x = 1,204,750.55