Finding the Third Proportional to 453,340.50 and 707,578.50

Step by Step Solution

1. Step 1: Write the proportion equation
   453,340.50 : 707,578.50 = 707,578.50 : x
2. Step 2: Convert to fraction form
   453,340.50/707,578.50 = 707,578.50/x
3. Step 3: Cross multiply
   453,340.50x = 707,578.50 × 707,578.50
4. Step 4: Simplify right side
   453,340.50x = 500,667,333,662.25
5. Step 5: Solve for x
   x = 500,667,333,662.25/453,340.50
6. Step 6: Final answer
   x = 1,104,395.78