Finding the Third Proportional to 655,605 and 1,012,519.50

Step by Step Solution

1. Step 1: Write the proportion equation
   655,605 : 1,012,519.50 = 1,012,519.50 : x
2. Step 2: Convert to fraction form
   655,605/1,012,519.50 = 1,012,519.50/x
3. Step 3: Cross multiply
   655,605x = 1,012,519.50 × 1,012,519.50
4. Step 4: Simplify right side
   655,605x = 1,025,195,737,880.25
5. Step 5: Solve for x
   x = 1,025,195,737,880.25/655,605
6. Step 6: Final answer
   x = 1,563,739.96