Finding the Third Proportional to 464,919 and 718,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   464,919 : 718,105.50 = 718,105.50 : x
2. Step 2: Convert to fraction form
   464,919/718,105.50 = 718,105.50/x
3. Step 3: Cross multiply
   464,919x = 718,105.50 × 718,105.50
4. Step 4: Simplify right side
   464,919x = 515,675,509,130.25
5. Step 5: Solve for x
   x = 515,675,509,130.25/464,919
6. Step 6: Final answer
   x = 1,109,172.80