Finding the Third Proportional to 719,415 and 1,108,651.50

Step by Step Solution

1. Step 1: Write the proportion equation
   719,415 : 1,108,651.50 = 1,108,651.50 : x
2. Step 2: Convert to fraction form
   719,415/1,108,651.50 = 1,108,651.50/x
3. Step 3: Cross multiply
   719,415x = 1,108,651.50 × 1,108,651.50
4. Step 4: Simplify right side
   719,415x = 1,229,108,148,452.25
5. Step 5: Solve for x
   x = 1,229,108,148,452.25/719,415
6. Step 6: Final answer
   x = 1,708,482.79